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2010 E70 X5 3.0d - Strange Noise

Discuss your latest mods or ideas, and anything to do with the BMW X5 (E70).
Sm[]key
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2010 E70 X5 3.0d - Strange Noise

Post by Sm[]key » Sun May 22, 2022 10:46 pm

Could a dodgey MAF throw up this fault? I replaced the MAF when I changed the EGR valve. Still getting the following error codes:

4BB6 Air mass meter

4501 EGR deviation control

I didn't have the MAF fault prior to changing it, so going to get another one.

I pretty sure my vacuum hoses aren't blocked. Could the EGR cooler cause a problem? :headbang:

Leslie
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2010 E70 X5 3.0d - Strange Noise

Post by Leslie » Wed Jun 15, 2022 9:02 pm

Did you get an further with this ? :D

Sm[]key
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2010 E70 X5 3.0d - Strange Noise

Post by Sm[]key » Mon Jun 20, 2022 11:04 pm

Leslie wrote: Wed Jun 15, 2022 9:02 pm Did you get an further with this ? :D
No, been too busy to sort it out unfortunately!

Now getting the fault - 4501 EGR deviation control - daily now after I've driven and then turn engine back on.

4BB6 Air mass meter comes up when I boot the car, got a refund for the MAF fault with change it soon for an OEM item.

Not sure what it could be, but vacuum pump is my next replacement plan?

One interesting observation was when I used the ISTA MAF test, I did this with previous MAF (don't think anything was wrong with it) and the current after market one I've had a refund for. The observation was when it holds mid range revs for a period, later in the test cycle the exhaust starts smoking excessively. Outside the car a strong smell of unburnt diesel. would be interesting to see if this is pointing to a known fault?

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