Not sure if this is normal.

[kenobi]

On tick over with my foot on brake i feel a lil thud every second under my foot.

Also when ideling does the C class have a gentle rock or perhaps vibration?

Any help appreciated.

 

[harpersimon]

the foot thuds sound abs system related? sure someone will come along and tell if thats normal or not soon!

 

[television]

The only thing that is near the brake pedal is the vacuum,,as for the thud I do not know

 

[E300tdHighlander]

Hi

Can you give a better discription?

 

[brandwooddixon]

Hmm, I must check.
I'm pretty sure that my brake pedal used to have slight "heartbeat" when stopped, although I don't recollect it recently.
I've probably got used to it, but I had alw3ays assumed that it was the car precharging the brake assist.

 

[CL500Wizard]

have you checked the pads? if they are wearing low with old rust edged discs, this 'heartbeat' happens on ABS equipped cars. have you experienced a hard stop lately? if all looks ok, you may want to try one on a private road (disclaimer!!)

 

[brandwooddixon]

Well I checked last night and indeed when I'm holding my car stationary, in drive, using the foot brake I can feel a small "heartbeat" every 2 seconds. It's not very noticeable and nowwhere near as big as the thudding when the ABS cuts in.

The car isn't moving anyway and I seem to remember that my previous E did the same, so have just assumed that it is normal.

The gentle rock or vibration at idle could be engine mounts. If worse in drive and stationary then I would say that they need replacement. Relatively easy DIY job. Personally I'd stick with genuine MB items as I have heard mixed reports about some of the pattern mounts.

 

[jberks]

I seem to remember a slight heartbeat on mine too (current one is SBC so a whole range of different interesting noises!).
As for idle rock/vibration, I'd start with a good service, new plugs and a new set of leads. These can work wonders for idle refinement as any weakness is amplified at low revs.

 

[brandwooddixon]

That's true and giving her a good service never did any harm.

She'll love you for it.:lol: