04 CLK 270 CDI loss of power.

[Coruscator]

Hi

Had a weird one earlier. I suddenly found after driving for an hour that there was significantly less power than usual.
The car runs ok and even climbs up to nearly 80mph but just really slowly. Almost like the turbo isn't working anymore.
I pulled over switched the car off, removed the key, waited a few minutes, started her up again and she was fine
again, as if nothing had gone wrong.

Its happened to me twice now, no warning lights or indication of what is causing it, it even says 'no malfunction'
on the dash. Please help.

Whats going on here, is it the O2 sensors?

 

[KillerHERTZ]

Mass Airflow Sensor likely

 

[Coruscator]

Thank you for your reply, when I test drove the car (almost 2 years ago) there was a warning light on the dash.
I spoke to the dealer and he told me that the Mass Airflow Sensor was at fault and he had his mechanics
fit a new one when I bought the car.

I'm just gonna go to my local garage to see if he'll pull the codes off STAR for me now.

 

[Coruscator]

Ok, the plot thickens. My man put his diagnosis kit on the car and it returned only 1 fault, which was to do
with the automatic heater booster.

His advice was to wait for the fault to show itself again and take the car back to him while it is still in limp mode.

I will keep you posted...

 

[Coruscator]

Ok so limp mode got more frequent so...

How difficult is it to change an air inlet manifold on a clk 270 cdi?

Went to the stealership today and got quoted for one.

It is suggested that this will cure my car from going into limp mode.

Any Ideas on where to get these parts from?

A 026 997 43 480 C28027 Seal Ring
A 611 094 01 80 C02021 Gasket
A 611 141 02 80 C13031 Gasket
A 612 090 19 37 F07810A Air Line


As always, thanks guys

 

[clk320x]

Any Ideas on where to get these parts from?

Mercedes Benz of Edinburgh