yellow warning light

[migo1960]

Hi guys I am new to the site and hopefully some one out the can help me. Just got a 2008 facelift CLS 320 CDI ,,keep getting 2 messages run flat indicator and ESP inoperative, Yellow warning triangle comes on then goes out when I start the engine but comes on when I pull away checked tyre pressures inflated at 32 psi anyone have any ideas . Mick

 

[umblecumbuz]

Time for a proper code reading, methinks.

Possibly you also find that the cruise control and Speedtronic are inoperative when this happens. It could be a wheel speed sensor giving this warning, but a good indie or MB dealer will put it on Star and tell you.

Umble

 

[Craiglxviii]

Rusted reluctor ring or knackered wheel speed sensor are the most likely cuplrits, £20-50 plus labour to fix.

 

[Mr Filipov]

The speed sensor on one of the wheels could be out and it will cause that fault. Best to get it connected and find out exactly what the problem is and which part needs to be changed without having to guess.