I have found an interesting read which has helped with a lot of the problems I've been having over the years with the 1999 clk 230 kompressor elegance auto coupe.
I thought I'd share the link and problems I've had for future searchers.
http://forums.mercedesclub.org.uk/showthread.php?t=46996
Problems at the moment:
There were some other problems with the car and the following parts were fitted by me:
Air mass flow sensor
Air recirculation unit actuator (Sits on the air box)
Lambda sensor
The problems came back after a month or two and the car went in for a diagnostic, this showed the air recirculation unit had been fitted correctly but not coded in.
The unit was coded in and upon travelling home and using the kickdown the problems came back.
The car has since had several visits back to the dealership, upon which they issue me with a report saying the air recirculation unit flap actuator thingy is faulty. But they don't actually fix it!
After several trips at a cost of £100 a go I returned with my father and a letter about the problem not being fixed.
This time they said they could not work on the car futher until the problems found within the free health check had been addressed. They said this was because the car would be otherwise 'unsafe' to test.
The health check showed some issues like brake disks and pads being worn, although they were not at the illigel limits and I felt this was an excuse to not fix the problem as prehaps they didn't know how to?
Again I got a report saying the air flap actuator was faulty.
I got the bits sorted from the health check, even though the car has just had an MOT in January I knew these bits were going to need doing so thats sorted, but obviously I was at square one with the engine problem.
I refused to keep paying for diagnostics so I changed to a different garage and told them the problems I'd had. They were a gear box specialist and they confirmed the auto box was perfect and operating as it should, and the problem was definitly in the engine bay. They didn't charge for this
.
My thoughts then turned to finding out if it was possible to bench test the air flap actuator unit. And thats when I found the above post helpful.
All parts were replaced with genuine mercedes bits and were not cheap.
There are a tonne of posts on oil in maf sensors, misfires, loss of power and much more but it seems very few people who are in the know with all this. It seems these days if it can't be plugged in to the computer and fixed then they're not interested.
I think a mixture of information of the net and enthusiasts with oily hands for the past 20 years is whats needed but for those searching for this models problems the above helped me loads so sorry for the long post but I think it's worth it.
I thought I'd share the link and problems I've had for future searchers.
http://forums.mercedesclub.org.uk/showthread.php?t=46996
Problems at the moment:
- Car idles a little strange - revs go up and down and create a slight vibration.
- Kickdown has lost it's power, misfires and revs shoot up high with little 'go' to the cars power.
- Car takes 5 or 10 minitues to warm up, if you set off before this it won't change gear.
There were some other problems with the car and the following parts were fitted by me:
Air mass flow sensor
Air recirculation unit actuator (Sits on the air box)
Lambda sensor
The problems came back after a month or two and the car went in for a diagnostic, this showed the air recirculation unit had been fitted correctly but not coded in.
The unit was coded in and upon travelling home and using the kickdown the problems came back.
The car has since had several visits back to the dealership, upon which they issue me with a report saying the air recirculation unit flap actuator thingy is faulty. But they don't actually fix it!
After several trips at a cost of £100 a go I returned with my father and a letter about the problem not being fixed.
This time they said they could not work on the car futher until the problems found within the free health check had been addressed. They said this was because the car would be otherwise 'unsafe' to test.
The health check showed some issues like brake disks and pads being worn, although they were not at the illigel limits and I felt this was an excuse to not fix the problem as prehaps they didn't know how to?
Again I got a report saying the air flap actuator was faulty.
I got the bits sorted from the health check, even though the car has just had an MOT in January I knew these bits were going to need doing so thats sorted, but obviously I was at square one with the engine problem.
I refused to keep paying for diagnostics so I changed to a different garage and told them the problems I'd had. They were a gear box specialist and they confirmed the auto box was perfect and operating as it should, and the problem was definitly in the engine bay. They didn't charge for this
.My thoughts then turned to finding out if it was possible to bench test the air flap actuator unit. And thats when I found the above post helpful.
All parts were replaced with genuine mercedes bits and were not cheap.
There are a tonne of posts on oil in maf sensors, misfires, loss of power and much more but it seems very few people who are in the know with all this. It seems these days if it can't be plugged in to the computer and fixed then they're not interested.
I think a mixture of information of the net and enthusiasts with oily hands for the past 20 years is whats needed but for those searching for this models problems the above helped me loads so sorry for the long post but I think it's worth it.
