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BMW E46 N42 engine Timing chain
17-02-2017, 10:22 AM (This post was last modified: 17-02-2017 01:29 PM by zippy320.)
Post: #1
BMW E46 N42 engine Timing chain
Hi Guys!

How often am I supposed to change the timing chain ? I spoke to a Dealership and they told me that it should be changed every 100 000kms , My cars mileage is now at 233 333 Exactly . The chain was changed at at 120 000 or around there .

Also the new redesigned chain tensioner was used at the time of the change . Should I change this again ? does it loose its tension over time?

Also when changing the chain , what should be changed with it in order to prevent future issues ?

Also , how big of a job is this , to change the chain?

I am getting two faults

2781 Camshaft sensor inlet ( I replaced this with a new one , fault still there )

27BB Camshaft control outlet vanos ( I took this out and cleaned it up )

My fuel consumption has gone up a little , and I noticed a little less low end power , and sometimes the car rattles a bit . But most times not at all . Sometimes it does make a funny noise at startup .

I was told that when these faults occur then it is the timing chain , either it needs to be replaced , the tensioner needs to be replaced or the timing is out .

Thanks guys for all input .

Just an Update , When I did the valve stem seals at SMG , I had asked them about the rails and guides and they told me that its all in good condition , this was last year sometime.

Current Cars
02 BMW E46 318i N42 Automatic
93 Mercedes Benz W124 E320 4 Door Automatic
88 BMW E30 320I M20 Automatic

Old cars
Hmm
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17-02-2017, 11:30 AM (This post was last modified: 17-02-2017 11:33 AM by spikester666.)
Post: #2
RE: BMW E46 N42 engine Timing chain
Ignore my post, thought you had the 8 valve 318i.

Current Ride: 2004 BMW E46 325ci F/L
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zippy320 (02-17-2017)
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