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Hi I’ve seen the P0299 turbo underboost fault twice. But the MIL clears on its own. I also saw P1CE8 as well. Looked it up and it’s crankcase ventilation in wide open throttle position. Car is totally stock, 45k miles.

Does anyone have any idea if these could some how be related to the dealership changing a gasket (had a small leak) and turbo coolant lines/pipes (their recommendation)? I had them perform this service about 2 months ago, car is out of warranty .

Job # 1 Labor Total: $ 1,620.00
RESEAL LEFT VALVE COVER/LEAKS OIL.
Cause: DRAIN COOLANT, R&R COILS AND FUEL RAIL. R&R FUEL LINES R&R THERMOSTAT. NECESSARY TO REPLACE TURBO COOLER PIPES R&R OIL FILTER HOUSING. REMOVE LEFT VALVE COVER. RESEAL LEFT VALVE COVER. NECESSARY TO REPLACE LEFT TURBO COOLANT LINES AND THERMOSAT. REINSTALLED PARTS. FILL & BLEED COOLING SYSTEM. CLEAN OIL FROM FRONT & BACK OF ENGINE.
Correction:
Part Number Part Description Parts Total: $ 787.52
MB016-997-50-45 MB000-998-65-90 MB278-018-02-80 MB278-200-06-15 MB278-184-02-80 MB113-990-02-22 MB000000-006365 MB007603-030100 MB012-997-56-48 MBQ-1-03-0005 MB278-200-02-00 MB278-200-09-00 MB027-997-06-45 MB278-091-00-60 MB276-016-00-21 MB278-201-02-80 MB016-997-50-45 MB020-997-95-45-64
SEAL RING CLOSING COVER ELASTOMER-MOLD COOLANT THERMO ELASTOMER-MOLD SCREW HEXALOBULAR BO RING,GENERAL,M SEAL RING.INJC G40 ANTIFREEZE COOLANT LINE COOLANT LINE O-RING ELASTOMER-MOLD ELASTOMER-MOLD ELASTOMER-MOLD SEAL RING
O-RING
Job # 1 Total
$2,407.52

MBenzEnthusiast

Did you find out what the P0299 was about? Thanks