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VANOS fault codes on N52 - 2A82 and 2A87

DDPF Hater

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Getting VANOS fault codes 2A82 (intake) and 2A87 (exhaust) on my E90 325i N52. Car runs rough at idle and has lost some power.

Already tried:

  • Cleaning VANOS solenoids
  • New oil and filter
  • Checked wiring

Still getting the codes. Do I need new VANOS solenoids or is it the VANOS unit itself? Dont want to throw parts at it blindly.

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  1. #1
    WWrenchMonkey

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    Boost leak on N55 - check the charge pipe first. The stock plastic charge pipe is known to crack under boost. Its the #1 cause of boost leaks on N55.

  2. #2
    BBimmerFreak

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    you can DIY a smoke test with a cheap smoke machine from Amazon (about 50 EUR). fill the intake with smoke and look for leaks. very effective

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