Hi I have a 2011 e350 blueefficiancy its had a b service two weeks ago a couple of days ago it started running lumpy and black smoke from exhaust as soon as I accelerate any advice please
Take it to a well-regarded Mercedes specialist and get them to scan for fault codes and have a look at it. We also need the codes to give anyone half a chance to help with this.
Hi I have a 2011 e350 blueefficiancy its had a b service two weeks ago a couple of days ago it started running lumpy and black smoke from exhaust as soon as I accelerate any advice please