Hoping someone can help with the following issue I’ve noticed with a used automatic C Class coupe 2012 I’ve recently purchased. The car makes a loud ticking / tapping noise once it’s parked after having been driven and the engine is turned off. It goes on for 10+ minutes - I haven’t waited to time exactly how long it goes on for before it stops, I only know it lasts for a minimum of 10 minutes as was stood by it waiting for my daughter to come out of nursery the other day! Seems to happen regardless of how long I’ve been driving (nursery is only 8 minutes from the house!). Noise seems to come from the rear. Will obviously be taking it to a garage, but just wondered if anyone else has had a similar issue and what you were told it could be/was?