Please Help


Active Member
Apr 13, 2009
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St Neots
Your Mercedes
Merc 320 CLK Cabrio Avantgarde
For the grand total of two weeks I have been the proud owner of a 2001 w208 320 CLK cab. Only 45K on the clock and a full merc service history.

However so far the following faults have appeared:-
CPS replaced
EC light staying on (managed to clear the fault code but worried will happen again)
Drivers memory seat lost all settings, reset and now remembers them

And the best bit.....went for drive today and a worrying noise (knocking noise) developed under hard acceleration (no loss of power). It is now noticeable on idle and appears to be coming from under the car in the area under the drivers seat.

Two questions you gurus maybe able to help out with:-
Is the knocking likely to be the cat?
As the car is under warranty I will give the garage a chance to fix, but losing confidence that more things wont go wrong.Thinking of asking for money back. From the above does it sounds like I have a case?

Many thanks for any help! ( I have also posted this on the general forum.)


Always remembered RIP
Mar 14, 2005
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Your Mercedes
2002 SL500, 216 CL500, all fully loaded
If you want your money back you must act fast, the knocking is hardly likely to be a CAT, a rattle yes and well known on that engine, rattles more at idle that at speed.

What ever you do get it in writing

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