Question about 2007 BMW 320i E90

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BMW N46 Engine Vanos noise

Cam chain noise on start up and deceleration. Have changed over solenoids and problem remains on inlet side. Could it be seals on cam or is it the vanos pulley?

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Posted on Jan 02, 2017

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SOURCE: 2000 bmw 540i noise in front of engine

if it's rattle kind of noise , possible cause :VANOS or chain guide.
There many other causes , the noise must be heared
by mechanic , to identify the source.

Posted on Apr 22, 2010

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Bmw e39 m54 engine defective cam sensors make car impossible to start because very low compression>


Lots of guesswork here.
Firstly, have you checked for compression on all cylinders.
If compression is low or non exisistant then you have a major problem probably caused by the timing chain slipping and causing damage to the valves /pistons etc
I would do this first.
Roger

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BMW E90 LCI, after a long distance trip the engine started making a noise. Had the head fixed, then the car was not picking up RPMs, had the computer box changed to the original, car worked fine


noise could be timing chain tattle due to tensioner failure, fault now sounds like valve timing wrong after changing vanos, there is special tools to set them up, also check the valvetronic servo motor. Scanning for fault codes will also be very useful

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How to fix 2002 BMW M3 service code 11360212. The code says solenoid valve for camshaft adjusting unit Permanent failure. What part needs to be replaced or repaired?


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Dose a 2001 bmw 525i have a timeing belt or timeing chane


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Is my 2000 reg bmw 728i got a cambelt or chain


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In any event, a 2.8 liter BMW engine has a cam chain. If the oil is changed regularly, that chain and the guides should last at least a quarter million miles. The VANOS may not last that long, but cam chains are not a high failure item.

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2000 bmw 540i noise in front of engine was told it was vanos seals, was told by bmw it had a sealed vanos unit, what else could it be


if it's rattle kind of noise , possible cause :VANOS or chain guide.
There many other causes , the noise must be heared
by mechanic , to identify the source.

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3 Answers

2000 bmw 528i shudders when first started and when it idles


I had the same issue with my 2000 528i. You more than likely need to have the Vanos seals replaced. BMW will tell you that the Vanos unit needs to be replaced but the problem is more than likely isolated to the OEM seals that shipped with the Vanos. This issue has been reported by several BMW owners. This issue has been thoroughly documented and reported to BMW in an effort to seek a corrective fix. Since BMW failed to address the problem, the guys that investigated the issue started their own company providing superior Vanos seals to the deficient OEM Vanos seals.

The company is Beisan Systems, LLC. I ordered their Vanos seal kit and had them installed at a local BMW performance shop for less than half of what BMW wanted to charge me for a Vanos replacement with the same faulty seals. Besian also provides step-by-step DIY instructions; if you have the time.

http://www.beisansystems.com/index.html

Good Luck.

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1 Answer

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there should be a right angle sensor on the right hand side of the vanos unit [im picking it's a vanos] and you are standing in front of the car. get a 5mm maybe 6mm allen key and undo the single bolt holding it to the engine. it sholuld slide out easily. then follow the lead under the intake manifold & unplug, can be a bit of a pain to get to but is possible. then install new sensor in reverse order.

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1 Answer

Hydrolic Valve Lifters.(Vanos) Replacing


Hi

The lifters can be cleaned by getting the engine nice and hot and then adding an engine flush to the oil and leaving the engine running at a high tickover for about 15 to 20 minutes, and then giving the car an oil and filter change.

Are you sure its the tappets and not the timing chain?

Regards

Geordie

Jun 13, 2008 | 1997 BMW 328

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