Quote:
Originally Posted by Jerinoid
Don't get comfortable just yet with it just because they cleared the codes. My 650i coupe (11/15/2012 build) is in for the 3rd time on this exact issue. First they replaced the vacuum lines for the open campaign on that (cost the dealership nothing to do that), but I kept getting the "Drivetrain Malfunction" and massive limp mode home. Now I'm getting 2 new fuel injectors. This problem with the N63tu has been documented as being the bad injectors from the prior (no "tu" motor) still being used in the early production 2013 models. Also may be bad coils, but I doubt it.
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My mechanic didn't just clear the codes....he changed the ignition coil as well. But he did warn me that these injectors tend to go on this motor so we'll see what happens