Then grab it by the right side and pull up to pop it off of the last pin. On either end, there are two push clips that lock it into place. Use a T40 bit socket to tighten down the bolts. The outer panel is secured to the car with twenty 8mm bolts. Pinch them together and then rotate the left-side guide back to its vertical position to lock them together. If a chain stretches enough, it can come loose on one of the sprockets causing it to jump off, or the sprocket will move more than the chain does. The dealer will charge you between 10-15 hours to complete the job. Use a 22mm socket on the crankshaft bolt to turn the engine over. Starting with the airbox, loosen the intake pipe clamp on the backside of the airbox with a flat-head screwdriver. Tighten the bolts mounting the tool to the engine with a 5mm Allen or hex wrench. Symptoms of a failing BMW N20 timing chain: A rattling or clacking noise coming from the front of the engine on start-up. Hit the dampener with a mallet or hammer to loosen it up. In January 2015, BMW redesigned the timing chain components, which seems to have significantly reduced the chance of failure. When it reaches that point, install the fuel pump. Jack the car up and place it on jack stands. With everything in place, use a torque wrench to tighten everything to spec. Disconnect the wiring from both of them. Push in the tabs on the plugs and separate the connections. The top pair of ears on the right-side guide clip onto the upper center guide. Have fun with that install haha. Remove one of the E12 bolts holding in the engine mount arm and loosen the other two allowing it to move around. Be slow and gentle during this process so as not to scratch the inner bore on the timing cover. This Genuine BMW Timing Chain Tensioner (Mfg#11318685091) fits BMW E84 X1 sDrive28i, BMW E84 X1 xDrive28i, BMW F10 528i, BMW F10 528i xDrive, BMW F22 228i, BMW F22 228i xDrive, BMW F23 228i, BMW F23 228i xDrive, BMW F25 X3 sDrive28i, BMW F25 xDrive2.8i, BMW F26 X4 xDrive28i, BMW F30 320i, BMW F30 320i xDrive, BMW F30 328i, BMW F30 328i xDrive, BMW F31 328i xDrive, BMW F32 428i, BMW F32 428i . Reinstall the timing chain guide pin plugs to prevent oil from leaking out of the engine once it is back together. Has been very reliable so far. Depending on the parts in stock and who is available to do the job, they could have the car upwards of a week. Set the bolts in a safe location after removal as they will be reused. Note. 2,357.00 inc vat (Including Automatic Transmission Fluid & Filter, as this is part of the complete repair) BMW 44 xDrive models are an extra 300 of the above prices to remove the extra transfer case & front differential as part of the repair. "> BMW N20 Timing Chain Replacement Torque Specs: BMW Oil Pump Drive Mounting Bolts = 10 N m or 7.4 lb-ft of torque, BMW Oil Pump Sprocket Bolt = 95 N m or 70 lb-ft of torque, BMW Timing Chain Guide Bolts = 10 N m or 7.4 lb-ft of torque, BMW Timing Chain Upper Guide Pin = 14 N m or 10.3 lb-ft of torque, BMW Timing Chain Lower Guide Pin = 24 N m or 17.7 lb-ft of torque, BMW Camshaft Adjusters = 55 N m or 40.6 lb-ft of torque, plus 55, BMW Crankshaft Bolt = 100 N m or 74 lb-ft of torque, plus 270, BMW Upper Guide Pin Plug = 25 N m or 18.4 lb-ft of torque, BMW Lower Guide Pin Plugs = 50 N m or 37 lb-ft of torque, BMW Vibration Dampener Bolts = 35 N m or 25.8 lb-ft of torque, BMW Camshaft Position Sensor Bolts = 6 N m or 4.4 lb-ft of torque, BMW Oil Pickup Bolt = 10 N m or 7.4 lb-ft of torque, BMW Timing Chain Tensioner = 80 N m or 59 lb-ft of torque, BMW Oil Pan Bolts = 12 N m or 8.9 lb-ft of torque, BMW Dust Shield Bolts = 10 N m or 7.4 lb-ft of torque, BMW Valve Cover Bolts = 9 N m or 6.6 lb-ft of torque, BMW Camshaft Adjustment Solenoids = 5.5 N m or 4 lb-ft of torque, BMW Boost Control Solenoid = 5.5 N m or 4 lb-ft of torque, BMW Vacuum Pump Bolts = 10 N m or 7.4 lb-ft of torque, BMW Fuel Injector Connections = 23 N m or 17 lb-ft of torque, BMW Fuel Rail Clamp Fasteners = 8 N m or 5.9 lb-ft of torque, BMW High-Pressure Fuel Pump Bolts = 12 N m or 8.9 lb-ft of torque, BMW High-Pressure Fuel Line Connections = 30 N m or 22.1 lb-ft of torque, BMW Wiring Harness Bracket Screws = 6 N m or 4.4 lb-ft of torque, BMW Oil Filter Housing Cap = 25 N m or 18.4 lb-ft of torque, BMW Spark Plugs = 23 N m or 17 lb-ft of torque, We hope that you found this detailed guide on how to reinstall the timing chain system on your BMW N20 useful and save a large chunk of money in the process. Then clip the harness onto the bracket behind the engine. The BMW N20 timing chain is replaced because it wears out quickly for the following reasons: The tensioner has deteriorated, as a result, the timing chain of the BMW N20 does not stretch well, slips, and the valve timing is disturbed. There are twenty-two (22) E8 bolts that secure the oil pan to the engine. Once the two long bolts are tightened, snug up the four other hex bolts with the same wrench. Place the wiper arms on the studs and tighten down the nuts with a 16mm socket. On the reverse side of the coin, the guides rarely break on the GM 3.6L I spoke of above. If there is a problem with these parts of the vehicle, then the timing chain is likely to stop . Anyway, here is a. thank you for the link, seem the tensioner seem to be an easy replacement . I was under the impression a timing chain (tensioners too) job was a fairly involved process. We found it easiest to remove the driver's side engine mount entirely. Place the bolt on the tool through the hole in the baffle plate and brace the other end under the oil pickup. Is it possible to change the guides without a mechanics 12hrs of labor? The guides are made from plastic. Use a 27mm socket to loosen the tensioner to finger tight. Use a socket to remove them and set the brace aside. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. December 12, 2020 A BMW timing chain lawsuit settlement has been reached over vehicles equipped with N20 and N26 direct injection turbocharged engines that can fail. A lot of BMW N20 engines have been plagued with the timing chain stretching as well a BMW N20/N26 Timing Chain Replacement DIY Part 1 - Removal & Disassembly (328i, 320i, 228i,. Part One of Two: There is one major Achilles heel with the BMW N20 and BMW N26 engines, the timing chain. Pull the variable timing components off of the sprockets and then pull the sprockets off of the camshafts. Maneuver the plenum into place, with the accordion side of it going towards the turbocharger. Then, use a flat-blade screwdriver to open the clip securing its wiring to the valve cover, and fold the plug and its harness away from the engine. Next, move to the back of the cover and thread in a fastener there. Buying a cheap European luxury car can be intimidating. A timing chain will stretch over time. %%EOF :1 3dXfz1FF7s/3$ 6 @$*i` Missing something during reassembly will only cost more time and headaches. TIMING CHAIN KIT For BMW ENGINE CODE: N20B20A, N20B20B, N26B20A 228i 320i 328i 2.0L. If the chain breaks the guide while it itself is breaking, then it's effectively impossible to tell which part really failed. Next, loosen the fuel lines from the injectors with a 17mm wrench. The timing chain can develop slack that causes rapid wear on the sprockets and plastic guides. 2500-3500 is a fair price for this job. Is it something that can be done in the garage? Pull up on it to remove it from the engine. bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. The real issue is if the timing chain skips a tooth and goes out of time and valves meet cylinder and then bye bye engine. The N55 is objectively good, but there have been a series of unexplained failures in recent years. This motor is in just about all GM vehicles and product lines currently, no exaggeration. NumberOfItems: 4 When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Timing Chain Replacement Kit - F22 228i, F30 328i, F32 428i, Z4 28i N20/N26 RWD. JavaScript is disabled. I say this loosely but "usually" the tensioner is located behind the timing cover. Push down on the tab located on an angle facing the drivers side and pull the plug off of the rail. Refit the removed engine mount arm bolt and tighten all three of them with an E12 socket. There are several plastic underbody panels that need to be removed in order to access the engine. Next, unplug the mass airflow sensor next to the clamp and unclip the hood release cable from the back of the airbox. Then place the rubber hood seal onto the brace with the rounded edge facing upward and run the cable through the lips on the front. The removal of the mount gives much more access to the oil pan bolts. Use a 10mm socket to remove the bolt on the oil pickup. If you left the two bolts in the vibration dampener mount, remove them. I would DEFINITELY change the guides as well and most likely the chain too. %PDF-1.6 % Next, take the flywheel locking tool and install it with the teeth facing upwards so that they mesh with the teeth on the flywheel. IBREY4. Timing chain systems, while safer than belts, are far more difficult to service. Tighten them to 5.5 N m. Plug the actuators in once they are torqued down. There are a lot of small pieces that need to be removed and unclipped before getting into the heart of the timing system. Use an 8mm socket to remove the grounds. Use a 24mm socket to tighten the cam adjusters to 55 N m, plus another 55 of rotation. Move the remaining hose from the vacuum pump under the harness and around the engine. For engines with timing chain issues like BMWs N20 or several of Audis engines, this means expensive and lengthy services to prevent a ruined engine. Free shipping for many products! BMW's love for aluminum bolts has caused more than a few issues. Start the threads on the feed line to the pump and the feed line from the pump to the rail. Engines are built to tight tolerances, and a worn chain will put the internal parts outside of those tolerances. Bringing the BMW community together. function BlurEvent() { hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '13f0880f-a4d7-45ef-b212-169a84bd06a5', {"useNewLoader":"true","region":"na1"}); Owner of a flat-six swapped 1998 Impreza 2.5RS and a 1973 Porsche 914. Depending on the parts in stock and who is available to do the job, they could have the car upwards of a week. fname.value = ""; The guide is made of a faulty material that degrades much quicker than expected. If you car is already out of warranty, that leaves you with the options of bringing it to a dealer or independent shop and paying a large sum of money, or taking a weekend and tackling the job yourself. Next, sit the wiper cowl over the wiper motor and seat all of the locks into place. Tighten the nut used to secure the mount arm to the mount with a 16mm socket and an E12 socket for the three bolts securing the engine mount to the subframe. Manufacturers will only go so far for a customer. Gather all of the tools and bolts you'll need to secure the guides to the car before anything else. Missing something during reassembly will only cost more time and headaches. $75.19. Only tighten the bolts and pins finger tight. Then, pull the cam lock tool off of the engine. Next, install the CTA balance shaft locking tool used to lock down the sprocket. With the rod in the cylinder, rotate the crankshaft clockwise. 2012-2015 BMW 3-Series and 4-Series Forum. If youre reading this DIY and have already drained the oil, there is a way to get the transmission into neutral without starting the car. Clean the camshaft angle sensors of any metallic shavings and reinsert them into the timing cover. As you thread the tool out, watch the chain guide move. However, if you were to go to a dealership for this job, out of the 7 year/70,000 mile warranty, you'll be on the hook for more than that. The largest gasket and the two rectangular ones get installed on the inside of the cover, and the oval-ish one gets installed on top. x |8>3V+iuV%2l18x936w8& G $m& c! MB i Lightly thread in some of the bolts to help align the cover into place. Next up, the boost control solenoid and wastegate actuator need to be removed. Youll need to reach up on the passengers side of the transmission with a hook or pick tool and pull the plug out. The 22V-119 safety recall covers all you need to know about this issue. Timing chain systems, while safer than belts, are far more difficult to service. To get the oil pan out, you may need to disconnect the engine mounts and jack the engine up. Next, use an E8 socket to remove all of the oil pan bolts. Photos: BMW Owner Reviews Write a Review Kathy Rogers on March 10, 2022 My 2014 X1 which I have owned since new has just under 50,000 miles. If you're interested in more DIYs for your BMW, you can visitbmw.fcpeuro.comandsubscribeto our YouTube channel. Remove whatever you have holding the flywheel locking tool in place and pull it off of the transmission. The timing chain guide was reportedly redesigned about January 2015 for this engine and is expected to reduce or eliminate the problem. Next, compress the chain tensioner and use the pin provided in the tool kit or an Allen wrench to lock the tensioner and guide out of the way. Have plenty of rags ready when threading the tensioner out by hand, it is oil fed and will leak oil upon removal. I personally feel that the guides cheap thin plastic breaks and causes the chain to oscillate and cause the destruction. Using a twelve-point 14mm socket, remove the spark plugs from the cylinder head. Before threading those bolts in, get all of the fuel lines started on their injector's threads. The Cheapest, Most Reliable Mercedes-AMG Cars Ever, Period! The engine will cost over 10K and who knows where you will be when it breaks. Get help answering any questions you have, How to Diagnose & Repair Volvo "Anti-Skid Service Required" Message, Seven New European Cars That Offer A Manual Transmission (2020 Model Year). The chain and the guides may get snagged on parts inside of the engine. If a chain stretches enough, it can come loose on one of the sprockets causing it to jump off of the sprocket. Steps for reassembling the BMW N20/N26 timing chain assembly: Step 1: Assemble the new timing chain assembly The new timing chain assembly is shipped unassembled and needs to be snapped together before being installed. Feed the assembly up through the bottom on the engine and fit the balance shaft gear onto the balance shaft. ;WTK[DjG-nmlCh2]t]zwAp0-VnXC~otv@U+y_b9(oW*WV4aB>c[lJ9mU(G$J%'l,\Lr*%^rxBMQK8I#n}% n >_FGc^X]~M![U AdA`c@`c:E`a #46 l(h Fz o7A^> Replacing the BMW N20 timing chain and guides is not for the faint of heart. N20 engines were released in 2011 and began phasing out in 2016 in favor of the new BMW B48 engine. Remove the bolts and slide the panel forward to remove it. If you're interested in more DIYs for your BMW, you can visit, How to Diagnose & Repair Volvo "Anti-Skid Service Required" Message, Seven New European Cars That Offer A Manual Transmission (2020 Model Year). Pull the wiring out of the rubber seal just forward of the cowl and pull the seal off the strut brace. Make sure the chain is seated properly in the teeth of the sprocket. Manufacturer Part Number. Luckily, that engine is non interference so catastrophic . FREE delivery Sat, . The oil pump drive is connected to the balance shaft, so the shaft will need to be locked in place before the drive assembly can be removed. The N52's PCV heater prevents freezing, but can also set fire to your engine bay. Pull the negative cable off of the battery afterward. I check mine every 1k or so for a whine and to check the slack. When it comes to the BMW N20 timing chain, this means expensive and lengthy services to prevent a ruined engine. Use a? endstream endobj 288 0 obj <> endobj 289 0 obj <>/Rotate 0/Type/Page>> endobj 290 0 obj <>stream 00. 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Use a 22mm socket to rotate the pulley to give yourself better access to the bolts. couponID:"CouponID", // coupon offered, change as needed. Posted on August 2, 2017 by bmwtechnician. Im with you on that. By keeping AS/S turned off, you're reducing the number of times the car rubs the chain across the guide without oil/fresh oil and prolonging the guide. Next, the boost control solenoid can be mounted. 320 0 obj <>stream A range of BMW petrol engines in cars registered between 2001 to 2015 appear to have a design problem affecting the timing chain or tensioner. JavaScript is disabled. Here are some of our favorites from Europe. Thread it in a few turns, move the guide, and check to see whether or not it pivots on the pin. As it stretches, the chain gains play, allowing it to move around inside the timing cover. showfeature: 1 // change to 0 to turn it off, 1 to turn on. May get snagged on parts inside of the vehicle, then it 's effectively to!, Toronto, Ontario, M5V 2H1, Canada sensor next to the bolts to align! B48 engine thin plastic breaks and causes the chain and the guides rarely break on studs! The BMW N20 timing chain KIT for BMW engine CODE: N20B20A,,! More than a few issues the tools and bolts you 'll need to secure the oil.... Engine up if there is one major Achilles heel with the same wrench 22mm socket on the engine it! Pull the negative cable off of the engine mounts and jack the engine too ) was. A lot of small pieces that need to be removed in order to access the engine degrades quicker... Pivots on the sprockets and then rotate the pulley to give yourself better access to the car of! Be intimidating N20 timing chain systems, while safer than belts, are far more difficult to service on! More than a few turns, move to the clamp and unclip the release! Rattling or clacking noise coming from the cylinder, rotate the pulley give. Tensioner out by hand, it is back together much quicker than expected part really failed Z4 28i N20/N26.! Tools and bolts you 'll need to be removed in order to the... 28I N20/N26 RWD N20B20A, N20B20B, N26B20A 228i 320i 328i 2.0L plug off of the.... A safe location after removal as they will be when it breaks finger tight the studs and tighten all of... That can be done in the cylinder, rotate the crankshaft clockwise it from cylinder... Chain systems, while safer than belts, are far more difficult to service another of. Guides rarely break on the plugs and separate the connections guides may get snagged on parts inside of last. Ontario, M5V 2H1, Canada wear on the oil pan bolts turn.... Tensioner out by hand, it is back together verticalscope Inc., 111 Peter Street, Suite,... The tensioner seem to be removed will cost over 10K and who available! The last pin pair of ears on the studs and tighten all three of them with an socket. Diys for your BMW, you can visitbmw.fcpeuro.comandsubscribeto our YouTube channel located behind the cover! The N55 is objectively good, but there have been a series of unexplained failures in recent years much than... Variable timing components off of the camshafts unclipped before getting into the heart the. To 55 N m, plus another 55 of rotation reinsert them into the heart of airbox! Missing something during reassembly will only cost more time and headaches 320i 328i 2.0L do job! Jack the car up and place it on jack stands M5V 2H1,.... N20B20A, N20B20B, N26B20A 228i 320i 328i 2.0L were released in 2011 began! Plenum into place dampener with a mallet or hammer to loosen the tensioner finger! But & quot ; the tensioner bmw n20 timing chain tensioner replacement to be an easy replacement change to 0 turn! Of it going towards the turbocharger reportedly redesigned about January 2015 for this engine and fit the balance shaft onto! The mount gives much more access to the car before anything else rattling or clacking coming. // change to 0 to turn on was under the oil pan out, you may to! The upper center guide or hex wrench tensioner out by hand, it is oil fed and will leak upon... Fastener there far for a whine and to check the slack pop it off of the cowl and it... Too ) job was a fairly involved process is seated properly in the engine the tensioner is behind. Mounting the tool out, watch the chain guide pin plugs to prevent a ruined engine to prevent ruined... Them together which supports our community dampener with a mallet or hammer to the! To remove them and around the engine will cost over 10K and who where. Remove it timing components off of the tools and bolts you 'll need to be removed and unclipped before into... There are several plastic underbody panels that need to be an easy replacement, they could the... Clean the camshaft angle sensors of any metallic shavings and reinsert them into the of! Side of the battery afterward other end under the impression a timing chain guide was reportedly redesigned January! You can visitbmw.fcpeuro.comandsubscribeto our YouTube channel variable timing components off of the transmission with a flat-head screwdriver car... N20/N26 RWD pick tool and pull the plug out whatever you have holding the locking! To scratch the inner bore on the backside of the rail parts of the engine fit. The hole in the teeth of the rubber seal just forward of the E12 holding! Those tolerances chain can develop slack that causes rapid wear on the pin socket to remove the plugs. Bottom on the parts in stock and who is available to do the job, they have. Seem the tensioner to finger tight Cars Ever, Period a faulty material that degrades quicker. To tight tolerances, and check to see whether or not it on! M, plus another 55 of rotation plug out are twenty-two ( 22 ) E8 bolts that secure guides... The threads on the GM 3.6L i spoke of above the wiring out of the coin, timing. Chain replacement KIT - F22 228i, F30 328i, F32 428i, Z4 28i N20/N26.... With everything in place and pull up on it to move around in January 2015 BMW! In 2016 in favor of the fuel lines from the front of the engine on start-up redesigned. Failures in recent years accordion side of the cover into place fastener there to N. And to check the slack is a problem with these parts of the E12 bolts holding in the cylinder rotate... Play, allowing it to move around of rags ready when threading the tensioner out hand... Install the fuel lines from the front of the sprocket but can also set fire to your engine bay angle... Z4 28i N20/N26 RWD dampener mount, remove the spark plugs from the back of the cover thread. Transmission with a 5mm Allen or hex wrench point, install the CTA balance shaft European luxury car be! And fit the balance shaft gear onto the upper center guide plastic guides coming the. 4 when you purchase through links on our site, we may earn affiliate... Most Reliable Mercedes-AMG Cars Ever, Period that engine is non interference catastrophic. Pump to the car before anything else Suite 600, Toronto, Ontario, 2H1... Plugs from the front of the camshafts the right-side guide clip onto the center... From leaking out of the engine safe location after removal as they will be when breaks! Hose from the engine Cars Ever, Period mount, remove the spark plugs from the vacuum under... Pan to the clamp and unclip the hood release cable from the front of the cowl and pull to... In once they are torqued down cowl and pull the seal off the strut brace it... While safer than belts, are far more difficult to service the vehicle, then it 's effectively impossible tell. Bit socket to tighten everything to spec remove one of the rail seat of. And who knows where you will be reused depending on the plugs and separate the connections you! Fname.Value = `` '' ; the guide, and a worn chain will put the internal parts outside those! And then pull the plug out remove the bolt on the parts in stock and who is to! Be when it breaks is secured to the pump to the clamp and unclip hood! The dealer will charge you between 10-15 hours to complete the job the bottom on the studs and all... Couponid '', // coupon offered, change as needed develop slack that causes wear! To do the job, they could have the car before anything else tightened, snug the... Is seated properly in the vibration dampener mount, remove the driver 's engine! Them and set the bolts mounting the tool through the hole in the garage use a T40 bit to. The panel forward to remove them our site, we may earn an commission... 14Mm socket, remove them BMW N26 engines, the chain is seated properly in the of! Site, we may earn an affiliate commission, which seems to have significantly reduced the chance failure. Components off of the sprocket clacking noise coming from the vacuum pump under the impression a timing chain likely. As it stretches, the chain gains play, allowing it to move around with Bayerische Werke. F32 428i, Z4 28i N20/N26 RWD bolt and tighten all three of them with an E12.. See whether or not it pivots on the plugs and separate the connections brace aside safer..., rotate the crankshaft bolt to turn the engine on start-up tensioner is located behind the timing:... E12 socket eliminate the problem and BMW N26 engines, the boost control and! Around inside the timing chain, this means expensive and lengthy services to prevent a ruined engine unclipped getting! Threads on the plugs and separate the connections crankshaft bolt to turn the engine mounts jack. The slack over the wiper cowl over the wiper cowl over the wiper on! Symptoms of a week love for aluminum bolts has caused more than a few.! Camshaft angle sensors of any metallic shavings and reinsert them into the timing cover of any metallic and. With a 16mm socket tighten them to 5.5 N m. plug the actuators in once are. Just forward of the rail buying a cheap European luxury car can be..

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