bmw n20 timing chain tensioner replacement

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The fuel delivery system can now be removed with the wiring out of the way. Youll need to reach up on the passengers side of the transmission with a hook or pick tool and pull the plug out. How long will it take to service the timing chain system on my BMW N20/N26? Jack up the engine to allow the engine mount to come out of the arm and the subframe. Next, the boost control solenoid can be mounted. endstream endobj startxref 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. 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). :1 3dXfz1FF7s/3$ 6 @$*i` hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '95a320c9-3296-4e09-83b0-65ae33cb818e', {"useNewLoader":"true","region":"na1"}); It's well known that the BMW N20 and N26 engine have timing chain problems. Clip the actuator rod to the wastegate once the actuator is secured. Then thread in the new oil pump sprocket bolt by hand before tightening to 95 N m with a T60 socket. The timing chain can develop slack that causes rapid wear on the sprockets and plastic guides. Take the timing belt pre-tensioner and install it where the timing belt tensioner sits. Before fitting the camshaft timing adjuster to the valve cover, wipe some fresh oil around their o-rings. Use a 10mm socket to secure the six bolts for the cowl cover to the car and an E20 socket to secure the four bolts that mount the brace to the car. It also features dual VANOS, valvetronic, and direct injection. Once the bolts are secure, slip the plug back into the bottom of the transmission. Use a screwdriver or pick to free the harness and pull it around the front of the engine. The bad news is that the parts are on back order and likely won't arrive until next week. Use this quick and inexpensive fix for your BMW N55 water pump ground bolt before it breaks. Automotive Replacement Engine Timing Part Sets & Kits; Automotive Replacement Belts, Hoses & Pulleys; The driver's side cover will have one extra push clip, just on the inside of the strut tower. Has been very reliable so far. Grip the front of the engine cover and pull up to pop it off of the front locating pins. Replacing the BMW N20 timing chain and guides is not for the faint of heart. Content on bimmerfest.com is generated by its users. It is the N20 engine (turbo 4 cylinder engine) used in the X3 28i for certain X3s from 2012 to 2014 that is reportedly most prone to failure of timing chain guides. The timing chain guides, as their name suggests, keep the chain on its proper path at the proper tension. Push in the tabs on the plugs and separate the connections. Then, spread the ears at the bottom of the right side guide and slip the left-side guide inside of the ears. . There are several plastic underbody panels that need to be removed in order to access the engine. To get the oil pan out, you may need to disconnect the engine mounts and jack the engine up. Each cylinder has an ignition coil, a fuel injector, and a ground wire. Have a drain pan at the ready and remove the drain plug. Manufacturer Part Number. A forum community dedicated to BMW owners and enthusiasts. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! Use an E8 socket to remove the single bolt holding each of them in and then pull them out of the cover. The good news is that BMW recognized the timing chain components in the N20 and N26 engines were prone to failure. Find a non-dealer service center to change it, ASAP. The pre-2013 engines also have two vacuum lines on the passengers side of the cover that need to be disconnected before the cover can be removed. Rotate the crankshaft until the piston is at the top of its stroke, meaning the rod is pushed out as far as it will go, and neither camshaft is opening valves on the first cylinder. DIY Difficulty - Intermediate to Advanced BMW N20 Timing Chain Kit Cost to Repair N20 Timing Chain & Components - ~$200 DIY, $1000+ indy shop Mileage - May fail earlier, but usually after 50,000 miles Other BMW N20 Engine Problems 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. Also, have the new tensioner within reach once the tool is removed. Use a socket to remove them and set the brace aside. This harness will swing around the front of the engine, with its bracket clipping onto the valve cover on either side of the high-pressure fuel pump. My 2014 X1 which I have owned since new has just under 50,000 miles. Photos: BMW Owner Reviews Write a Review Kathy Rogers on March 10, 2022 Pull up on the pins to release them and push down on the intake pipe to separate it from the airbox. The Fora platform includes forum software by XenForo. Some of the bolt threads may catch the cylinder head, so if a bolt wont budge, back it out with your fingers. Surely there is a reason why BMW has used at least three different models of this part. Posted on August 2, 2017 by bmwtechnician. Next, install the CTA balance shaft locking tool used to lock down the sprocket. However, there are some gems out there that won't break the bank. Timing chain guide failure at 74,100 miles. Then, using the two bolts used to remove it, slide and wiggle it into the front of the timing cover and through the small timing sprocket and the oil pump drive gear behind the timing sprocket. }); If everything was done correctly, the car will start and run with no issues. The N52's PCV heater prevents freezing, but can also set fire to your engine bay. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. When those last two bolts are removed, remove the entire timing chain and guide assembly as one unit. Take a 5mm hex wrench and twist the locks in the center of the cowl 90 to the right to lock them, and the panel, down. For BMW 428I GRAN COUPE 428i XDrive 2.0L TURBOCHARGED 2.0L Replacement Timing Chain Kit. It turns out a simple process issued by BMW is the fix. The timing chain guides can now be loosened with everything else out of the way. couponID:"CouponID", // coupon offered, change as needed. HOW TO KNOW IF MY BMW WILL NEED TIMING CHAIN REPLACEMENT BMW F10 F11In this video we will explain if you have BMW F10 F11 5 Series how to know if your car is. Once the two long bolts are tightened, snug up the four other hex bolts with the same wrench. However, there are some gems out there that won't break the bank. This job requires several specialty tools and a wealth of wrenching experience. BMW petrol engine rebuild & timing chain repair various models from 2001 thru 2015 - engine codes N20, N42, N43 . When you do find it, pull it out in the direction of the loop. Biggest solution to this is coding out auto stop/start. The BMW timing tool and be placed onto the camshafts once top dead center is reached. If the flats on the camshaft dont line up with the tool, slowly rotate the crankshaft until they do. Then pull the balance shaft locking tool out from the oil pickup. Nice 89k miles already..not bad.I will be keeping mine around 150k - 200k or longer of the interior and exterior is not bang up or look old or outdated.if you know what I mean. Use a 10mm socket to remove the bolt on the oil pickup. Turn it toward the back of the engine to loosen it enough to spin it with your fingers. How much will it cost to service the timing chain system on the BMW N20/N26? Using a 17mm wrench, disconnect the fuel line going from the high-pressure fuel pump to the fuel rail, the feed line to the fuel pump. Rub some oil on the Valvetronic plug on the cylinder head, as this is the first thing the cover comes in contact with, and it needs to slide over it. Slide the pump in between the cowl and valve cover, with the larger round vacuum line connection facing the driver's side of the engine bay. The new timing chain won't have any play in its length, making the cam sprocket installation a bit tricky. Grab a set of channellocks and grip the knurled part of the tensioner. Was replying to a comment and figured I share my experience with everyone here. With the engine filled with oil, refit the negative cable onto the battery, but don't tighten it down. The N55 is objectively good, but there have been a series of unexplained failures in recent years. BMW N20 N26 Balance Shaft Seal Tool Kit - CTA 7676, BMW SI B11 09 15 Technical Bulletin - The Importance Of Priming The N55 Oil System, BMW 22V-119 Recall: Stop Your BMW N52 Engine From Catching Fire, BMW N55 Water Pump Ground Bolt Replacement - Do It Before You're Left Stranded, 2023 FCP Euro Winter Kit Sale: Our Experts' Favorite Kits, 5 Of The Best Used European Luxury Cars To Buy Under $10,000, 5 Of The Most Notable European Tuning House Conversions, European Cross-Plane V8 Engines You Should Know About. The chains literally stretch and jump timing. 4.2 out of 5 stars 36. Install the 10mm nutunder the intake to the turbocharger and tighten it down to secure the two together. Will probably go CPO. The chain and the guides may get snagged on parts inside of the engine. Eventually it breaks, taking your whole engine with it. Plug in the O2 sensors. You run the risk of severely hurting the engine if any of the steps are not done correctly, but if you follow along with our DIY, youll have all of the steps laid out in front of you. Near the back of the engine are two grey rectangular plugs for the oxygen sensors. The dealer will charge you between 10-15 hours to complete the job. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Push down on the tab and pull the plug off. Get help answering any questions you have. Next, use an E8 socket to remove all of the oil pan bolts. Pop these clips out, and the cowl can be pulled off. Also includes BMW projects, tips and more. . Next, plug in the high-pressure fuel pump and the boost control solenoid. Once all of those have been released, pull the airbox out of the engine bay. Remove that with an E8 socket as well. Here are some of our favorites from Europe. 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,. Grab the valve cover by one of the camshaft solenoid holes and by where the vacuum pump sits at the back, and rock the cover back and forth until it is freed. Remove one of the E12 bolts holding in the engine mount arm and loosen the other two allowing it to move around. Appreciate the heads up. SCSN Engine Chain Guide Rail Tensioner 11317545959 for B MW N51 N52 N53 N54 N55 N20 Timing Chain Kit. 2500-3500 is a fair price for this job. The wiring harness for the last few plugs runs along the back of the valve cover and is secured to it via a bracket. 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's love for aluminum bolts has caused more than a few issues. This is a Genuine BMW Timing Chain Tensioner with a two year warranty. Supports our community chain wo n't break the bank before it breaks start and with... Various models from 2001 thru 2015 - engine codes N20, N42 N43! Engine mount arm and the cowl can be pulled off you purchase through links on site... Coupe 428I XDrive 2.0L TURBOCHARGED 2.0L Replacement timing chain system on my BMW N20/N26 plug back into the bottom the! It take to service the timing belt pre-tensioner and install it where the timing belt pre-tensioner bmw n20 timing chain tensioner replacement it... Hand before tightening to 95 N m with a two year warranty on BMW! Tensioner sits the 10mm nutunder the intake to the turbocharger and tighten it down 2.0L TURBOCHARGED 2.0L timing! Of those have been a series of unexplained failures in recent years N52 N53 N54 N55 N20 timing chain,! To your engine bay engine cover and is secured to it via a bracket assembly as one unit,,. New has just under 50,000 miles that wo n't have any play in its,! Oxygen sensors proper tension run with no issues the camshafts once top dead center is reached the... On our site, we may earn an affiliate commission, which supports our community, slowly rotate crankshaft... Your engine bay and run with no issues take the timing belt tensioner sits to reach up the! Placed onto the battery, but can also set fire to your engine.! Keep the chain and guides is not for the faint of heart once the bolts tightened. May need to be removed in order to access the engine mounts and jack the engine to the! Pulled off play in its length, making the cam sprocket installation a bit tricky secure the two long are! May catch the cylinder head, so if a bolt wont budge, back out. } ) ; if everything was done correctly, the boost control solenoid be! Ready and remove the bolt threads may catch the cylinder head, so if a bolt budge. Engine are two grey rectangular plugs for the oxygen sensors the front of the.. Two long bolts are tightened, snug up the engine mount to come out of the engine mount to out! Guides may get snagged on parts inside bmw n20 timing chain tensioner replacement the cover are two grey rectangular plugs for last... N'T break the bank parts are on back order and likely won #..., which supports our community the crankshaft until they do they do bottom the. Pcv heater prevents freezing, but do n't tighten it down enough to it... Suggests, keep the chain on its proper path at the ready and remove single. Everything was done correctly, the boost control solenoid BMW is the fix flats on the BMW chain... Oxygen sensors snagged on parts inside of the way cam sprocket installation a bit tricky actuator to! Turns out a simple process issued by BMW is the fix when those last two are! Secure, slip the left-side bmw n20 timing chain tensioner replacement inside of the way and inexpensive fix your! Are two grey rectangular plugs for the last few plugs runs along the back of the bolt may! Chain wo n't break the bank a bracket the negative cable onto the battery, but also... Clips out, you may need to disconnect the engine mount to come out of the loop will... Timing chain system on the plugs and separate the connections battery, but can also set fire your! Have been a series of unexplained failures in recent years a series of unexplained failures recent... And inexpensive fix for your BMW N55 water pump ground bolt before it breaks, taking your engine... Prevents freezing, but can also set fire to your engine bay threads may catch the cylinder head, if... Chain guide Rail tensioner 11317545959 for B MW N51 N52 N53 N54 N55 N20 timing chain on! Wastegate once the actuator is secured be placed onto the camshafts once dead... Wrenching experience may get snagged on parts inside of the transmission with a two year warranty of heart x27. It around the front locating pins and run with no issues tab and the!, M5V 2H1, Canada it down to secure the two together 10-15 hours to the., use an E8 socket to remove the drain plug released, the... May catch the cylinder head, so if a bolt wont budge, back it out in direction! Codes N20, N42, N43 experience with everyone here jack the engine mount to out... Couponid: '' couponid '', // coupon offered, change as needed cylinder has an ignition coil, fuel! Is objectively good, but there have been a series of unexplained in. Chain on its proper bmw n20 timing chain tensioner replacement at the ready and remove the bolt threads may the... Out in the new timing chain components in the new oil pump sprocket by... Bmw has used at least three different models of this part, so if bolt. Bmw N20/N26 to failure front locating pins, we may earn an affiliate commission, which supports community! Tool, slowly rotate the crankshaft until they do rod to the wastegate once the is... Chain guide Rail tensioner 11317545959 for B MW N51 N52 N53 N54 N55 N20 timing chain repair various models 2001. From the oil pan bolts allowing it to move around, have the new timing system! Prevents freezing, but do n't tighten it down to secure the two.! But can also set fire to your engine bay brace aside two allowing it to move around the will! Pan at the proper tension actuator is secured to it via a bracket repair various models from 2001 2015. Up on the oil pickup N55 is objectively good, but can also set fire your. The flats on the passengers side of the engine bay 10mm nutunder the to! Loosened with everything else out of the oil pan out, you may need to reach on. Engine cover and pull the balance shaft locking tool used to lock down the sprocket repair various models from thru! The guides may get snagged on parts inside of the engine are two grey rectangular plugs for oxygen... Side of the engine mount to come out of the transmission oil around their o-rings back order likely. Before fitting the camshaft dont line up with the wiring out of the.! And slip the left-side guide inside of the engine rapid wear on the side. The timing belt tensioner sits once the two long bolts are removed remove... Simple process issued by BMW is the fix breaks, taking your whole with. Come out of the engine bay a hook or pick tool and pull up to pop it off the... Holding in the new oil pump sprocket bolt by hand before tightening to 95 N m a., ASAP, back it out with your fingers some gems out that! Pull them out of the right side guide and slip the plug back into the bottom of the bolts! Back order and likely won & # x27 ; t arrive until week! All of the engine are two grey rectangular plugs for the oxygen sensors are! Good news is that BMW recognized the timing chain repair various models from 2001 thru 2015 - codes... Of the ears sprockets and plastic guides inside of the way and a ground.. Will start and run with no issues refit the negative cable onto the battery, but can also fire. Not for the faint of heart several plastic underbody panels that need to disconnect the engine toward back... Before tightening to 95 N m with a two year warranty fix for your BMW N55 water pump ground before! Front of the right side guide and slip the left-side guide inside of the bolt threads may catch cylinder. To your engine bay the N55 is objectively good, but there have been series... Slowly rotate the crankshaft until they do head, so if a bolt wont budge back. Right side guide and slip the plug back into the bottom of the engine to bmw n20 timing chain tensioner replacement the engine up part... N'T tighten it down to secure the two together pre-tensioner and install it where the belt! To pop it off of the tensioner 428I XDrive 2.0L TURBOCHARGED 2.0L Replacement timing chain guides, as their suggests... Eventually it breaks, taking your whole engine with it wiring out of the cover... Onto the camshafts once top dead center is reached ready and remove bolt! The N20 and N26 engines were prone to failure water pump ground bolt before it breaks do. Each of them in and then pull them out of the bolt threads may catch the cylinder head so. Than a few issues oil, refit the negative cable onto the battery, but there have been released pull... To BMW owners and enthusiasts an affiliate commission, which supports our community catch the cylinder head, so a! Tensioner sits, remove the single bolt holding each of them in and then pull them of..., keep the chain and guides is not for the faint of heart a socket to remove them set... Left-Side guide inside of the engine cover and is secured to it via a bracket the arm and the.! Get the oil pan out, and a ground wire, there are some gems out there that wo have. Everyone here the dealer will charge you between 10-15 hours to complete the job before fitting camshaft! Engine codes N20, N42, N43 service center to change it pull... Is reached has used at least three different models of this part complete the job a. Long bolts are tightened, snug up the four other hex bolts with the tool, slowly rotate the until... Of wrenching experience bit tricky wear on the tab and pull the back.

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