Just bought 99 CLK320...Anything I should do before I drive it?
Ive been browsing the forums and have found out a lot of interesting things about these cars. I just purchased a 99 CLK320 with high mileage and was wondering if there was anything any of you guys would recommend changing before i took it on the road. The car was a daily driver, and aside from some cosmetics, and a rough idle, its pretty solid. I was just wondering (aside from an obvious tune-up) if you think theres anything I should attack before it becomes an issue. I plan on doing quite a bit of work to it but would still like to know its reliable beforehand.
Cheers,
Bill
1999 CLK320
350000kms
at 350,000 kms, i'd change all 12 spark plugs and wires, water pump, all fluids, new brakes and new tires and i'd say your ready to go for another 200,000kms




Critical! Your model year has a recall covering failure of the harmonic balancer. Fail usually results in a lot of collateral damange and expense. Call a local dealer with your VIN # to make sure the necessary repairs have been made.
Additionally, although your purchase seems past this point, early CLKs are covered by a successful class action suit that extends the warranty to 100K miles (e.g. servicing notification/failure to use synthetic vs. dino oil for the recommended extended oil change intervals).
Otherwise, for the most part (excepting some wis-bang electrical features/controls) the CLK series has proven to be a reliable ride.
A simple faults diagnosis readout would point to the cause of your rough idle.
Do not start replacing stuff based on guess work or problems others have repoted (e.g. CPS, MAF etc.). Although they sometimes fail, I believe the majority of us have no problems with these items.
Did you get service records with your purchase?
If not, many vintage CLKs are still running on their original spark plugs, gas filter etc..
Bill
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Critical! Your model year has a recall covering failure of the harmonic balancer. Fail usually results in a lot of collateral damange and expense. Call a local dealer with your VIN # to make sure the necessary repairs have been made.
.
Dealer changed mine out years ago. Had them throw on a new belt at the same time, so I got that piece of labor for free. Mine was VERY close to failure.




