I notice there are some 'tik-tik' noise
come from somewhere below the engine when
it is going up hill or wherever I apply
pressure to the accelerator.
This noise become obvious when the engine
is hot. However there is no problem when travel in constant speed. BTW, this happend even I down shift to lower gear.
Could it be the drive shaft or coupling
is bad.
Thanks in advance.
AL

Have the driveshaft front flex disc checked by your mechanic.

------------------
Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

I will get it check but assuming it
is bad, will it be a simple task to
get it replace and what is the estimated
cost for the part.
Thanks again Benzmac.

I can't remember the cost, but if you want to attempt it yourself, you will need a lift. In a couple of weeks we will be offering parts!