Failing alternator and glow plugs were replaced by garage .. more problems since driving away, garage created ?
Before alternator issue and glow plug replacement I had no issues other than hard to cold start.
Now I have these 3 errors ..
1. Mass or Volume Air flow A circuit
2. Lost communication with glow plug control module
3. Sensor reference voltage A circuit low
Looking for some insight before taking back to garage to have more money extracted
Car is 2010 300C SRT 3.0 CRD V6 (Mercedes diesel engine)
