Just looked at an 02 W210 E240 - possible problem

[Profuminif]

hi,

i have just looked at a 2002 W210 E240 and car was good, no rust luckily,
however there was a clicking under the bonnet that got me thinnking should it be there or not.

the clicking was coming from what i think is a valve on a pipe. this pipe is part of an assembly on the lower right side of the engine bay by the PAS bottle, there is a machined block there with a number of pipes coming out of it, so it may be ABS or fuel injection related, but i dont know which.
anyone help with a E240 engine bay picture, and i can circle the part, or perhaps help me by letting me know if this is a problem, or this clicking is meant to be there

a newbie about to buy his first Merc

Simon

 

[Smiley]

I think it is part of the fuel recirculation system - there is a valve there that can tick. My SL500 did it sometimes - nearly had heart failure when I first heard it - thought it was a tappet. MB dealer offered to replace it for something like £250 (I think - but it was a while ago) but also told me it did not need doing and to leave it.

 

[recycled]

purge regeneration valve. no problem whatsoever

 

[GazCaff]

The pulse air system, it can often be heard when the car is warming up as it helps to bring the cats upto operating temperature.

 

[Adam230K]

As others have said, that tick is normal, olly showed it to me the other day on an W210 E55, which runs perfectly fine.

 

[Profuminif]

thanks all

with a bit of luck once the guy replaces the MAF on the car it will be mine
(needs the MAF done i think as the box doesn't downshift/kickdown on its own, but will change if using the tiptronic)

Simon

 

[GazCaff]

thanks all

with a bit of luck once the guy replaces the MAF on the car it will be mine
(needs the MAF done i think as the box doesn't downshift/kickdown on its own, but will change if using the tiptronic)

Simon

Check the throttle cable isn't slack, that will prevent kickdowns if it is too slack (as I found out myself recently).