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What's up with my Mercedes C-Class?

The collision avoidance system and traction control keep switching off on my 2016 Mercedes-Benz C-Class. When I switch off the engine and restart everything is ok again for approx 20km when they act up again. Any ideas?

What's happening with my Audi Q7?

Hello,

I've been driving a beautiful Audi Q7 for just about a month. Is it a big deal that the start-stop just completely stopped working? Also, the front parking sensors are no longer going off when I pull up in front of another vehicle or when I pull into the garage; however, when I back up it works.

Can you please give me some advice?

Do VAG TSI engines have timing chain probs?

Hi,

Looking at a 2013 Audi A1 1.4 TFSI S tronic. Am I right in saying these engines are susceptible to the timing chain stretching and a hefty repair bill if it does? Would you steer clear of this engine or, generally, any of VAG TSI/TFSI engines pre-2015?

Thanks