R171 amg

[BenzedUP]

Hi Guys,

My SLK55 is not running smoothly, only notice it at idle, there is a very slight vibration from the engine I think.

Any idea what it might be?

Car is a 2007 with around 21K miles.

Thanks,

Jo.

 

[miro]

Dud fuel, never driven hard, broken engine mount.

 

[simon1966]

Could be the engine / transmission mounts. My idle was always a bit lumpy and now much better with new mounts on my E55K.

 

[Will]

Slight misfire?

 

[BenzedUP]

Hmmm, i'm not sure if it's a misfire to be honest, just a bit rough at idle.

 

[Will]

What do you think it is then?

 

[BenzedUP]

What do you think it is then?

Not sure mate, that's why I'm asking.

Could be spark plugs? Or HT leads?

 

[The _Don]

Not sure mate, that's why I'm asking. Could be spark plugs? Or HT leads?

Possibly ht leads if never changed?

 

[BenzedUP]

Possibly ht leads if never changed?

They've not been changed from new so maybe at the next service in 4k I'll get my local MB dealer to change them anyway.

It's going to be a big B service.