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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > Query: CAM Timing - indication for chain stretch?

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      04-05-2020, 09:26 AM   #23

Drives: x5 35d e70 2011
Join Date: Sep 2016
Location: NYC area

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How is this calculated? Is the ecu comparing crank and cam timing to come up with an offset?
If so we still can use it to see what the numbers do with time.

The only other chain issue I've heard of is the tensioner wearing out on some engines. In that case I think we wouldn't even see a stretch until it fully fails?
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      05-13-2020, 11:07 AM   #24
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Drives: E91 325d 08
Join Date: Feb 2020
Location: Köln

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Thanks for these instructions, really helpful and detailed!

I had to replace my timing chain, as one link was already broken on one side, this tool might have made the diagnosis a lot easier. I didn't have the right pin to lock the crankshaft and my camshaft tool had a lot of play, so I wanted to use this method to check my timing

Only problem I have is that I got the M57 engine using the D60M57A0.prg file and I can't find any value related to the crankshaft position or offset. Is it possible to read out this value somehow? I also have Inpa and Ista installed if that helps
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