Originally Posted by critical05
So I got my car back after the carbon cleaning(walnut blast) and the problem is fixed. SA is waiting from bmwna to see if they will cover it under cpo.
This car has never had a carbon cleaning, less than 40k miles, but that doesn't mean anything. There could be gobs of carbon in there. My car had lots of carbon buildup - worst I've seen yet - when I did it at 47k miles last year. Whenever he schedules another appointment, we agreed that carbon cleaning would be the next step. It's regular maintenance, anyway...
E92 335i/6MT Dinan Stage 3: intercooler, oil cooler, intake, flash, exhaust, LW dual-mass flywheel.
Vishnu PWM methanol custom trunk mount, Diffsonline 3-clutch Salisbury custom diff, Ohlins Road and Track coilovers, Vorshlag camber plates, much more...
E28 M5 w/ buncha stuff, R171 SLK350