High idling

[neven]

Hi guys.I’ve got 2011 e350d amg.When I stop the car idling is just a few millimetres above 1000 rpm,it’s 1200 and as soon as I stop noise goes up slightly.Is this normal.Many thanks.

 

[Bobby Dazzler]

Hi guys.I’ve got 2011 e350d amg.When I stop the car idling is just a few millimetres above 1000 rpm,it’s 1200 and as soon as I stop noise goes up slightly.Is this normal.Many thanks.

I’ve not driven a diesel for some years but that Rickover seems high. Can you smell burning?

If it has them then it could be that the car is trying to regenerate the DPF by burning off carbon deposits.

During regen the car might hold on to gears longer and have a higher idle tickover speed.

 

[neven]

I’ve not driven a diesel for some years but that Rickover seems high. Can you smell burning?

If it has them then it could be that the car is trying to regenerate the DPF by burning off carbon deposits.

During regen the car might hold on to gears longer and have a higher idle tickover speed.

Many thanks

 

[FiveAlive]

A warmed-up E350 diesel should be idling at 550-600rpm, or 800rpm if DPF regenerating. What is the engine temperature gauge reading? Does the air conditioning work properly?

 

[neven]

A warmed-up E350 diesel should be idling at 550-600rpm, or 800rpm if DPF regenerating. What is the engine temperature gauge reading? Does the air conditioning work properly?

Thanks for the reply.It’s strange but today after few weeks of high idling it looks normal again…

 

[MSG2004]

if the car is trying to regen - you can tell by the smell of buring when you park up and walk past the front, driver's side wheel.