Metallic pinging sound - help!
Hi. Several times in the last week I’ve noticed a noise I can only describe as metallic popcorn being made! This appears to be coming from the rear of the car. I’ve videoed it and sent it to the Mercedes dealer I purchased it from. They say this is normal and it’s just the exhaust cooling down. I’ve never had a car do this before and it’s actually quite loud and therefore embarrassing when I pull up in public somewhere. Has anyone else’s GLA done this?
Mine is a 2016 GLA 220 4matic, diesel, AMG line