I recently got a check engine light and plugged in the scanner which basically came back with code P0340 "Camshaft position sensor A circuit bank 1" Intake side. Took it to a local shop as i figured it was just a defective sensor which needs replacement. I get a call back from the mechanic and he basically tells me I need a whole new Vanos unit? Will cost about $3,000. I currently have a little over 61,000 original miles. I told him I'd get back to him and I definitely want to get a 2nd opinion from another experienced shop. Any input on this if someone had experienced a similar issue?
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Received engine code P0340. Was told I need an entire new VANOS.
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Received engine code P0340. Was told I need an entire new VANOS.
Last edited by CarbonBlkM3; 08-20-2022, 07:50 AM.Tags: None
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Originally posted by Slideways View PostDid they try to replace the cam sensor on the intake side first? If not, it sounds like you need to look for another independent shop.
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Originally posted by CarbonBlkM3 View Post
Negative. Just basically gave me a rundown about the Vanos and recommended that I perform oil changes every 6-8 months.
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Originally posted by Slideways View Post
Yeah, it might be best to find another shop. For something like the cam sensor, any good BMW independent shop can handle this. For any VANOS removal and repair work, I'd find a performance shop that works on E46 M3s daily/weekly.
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A circuit error means exactly that. The wiring is at fault or it can't "see" the sensor. That can be the sensor failing or plug etc.
It doesn't mean it can't adjust cam timing if for example VANOS is failing. It shouldn't be possible to get that error from a failed VANOS.
So yes I definitely would be looking at the sensor first.
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Originally posted by sapote View PostI bet it is just a bad intake cam sensor. Don't let them tear into other parts.
OP, ask the shop the reasons why they think a new vanos unit is needed.
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Originally posted by Shonky View PostA circuit error means exactly that. The wiring is at fault or it can't "see" the sensor. That can be the sensor failing or plug etc.
It doesn't mean it can't adjust cam timing if for example VANOS is failing. It shouldn't be possible to get that error from a failed VANOS.
So yes I definitely would be looking at the sensor first.
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Originally posted by CarbonBlkM3 View PostHe basically stated I don't drive the car enough being I only got 61,000 miles on the odo, and stated I should maybe try and do a fresh oil change to see if that alleviates anything.
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