Kompressor trouble please HELP!!
Thread Starter
Member
Joined: Jul 2003
Posts: 230
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From: Toronto, Canada
99 C43 ///AMG
Kompressor trouble please HELP!!
After just having my C230K sedan for a week, the supercharger is acting up.
It is working intermittantly (not all the time). When the car is turned on in the mornings it makes strange noises which I was told is normal and the kompressor is spinning. Aswell when revving the engine up, it does kick in and spool up.
Now when driving its a different story. When you floor it from one stoplight it may or may not create the boost and give you that "kick".....if it doesnt it reaches redline slower than normal and basically is normally aspirated like a non kompressor 230.
Once you pull over and restart it will work for the first few times then not work anymore.
I thought it would be a possible MAS sensor but no check engine light is on or hesitation from the engine. So something is telling it the S/C not to come on....if the S/C was cooked then I dont think it would ever come on.
Where should I start looking? I dont race the car but I still want everything to work as should.
In another forum one person posted a very similar problem on his SLK230K and solved it by doing this:
took out the "Relay Module" box. Mostly all of the relays are contained in this box and soldered to a circuit board. Then I had to open it up and find were the K40 Relay was on the circuit board. Wasn't hard to find because there were two BAD solder joints for the K40. I re-soldered the connections and I haven't had a problem since.
Please help.
It is working intermittantly (not all the time). When the car is turned on in the mornings it makes strange noises which I was told is normal and the kompressor is spinning. Aswell when revving the engine up, it does kick in and spool up.
Now when driving its a different story. When you floor it from one stoplight it may or may not create the boost and give you that "kick".....if it doesnt it reaches redline slower than normal and basically is normally aspirated like a non kompressor 230.
Once you pull over and restart it will work for the first few times then not work anymore.
I thought it would be a possible MAS sensor but no check engine light is on or hesitation from the engine. So something is telling it the S/C not to come on....if the S/C was cooked then I dont think it would ever come on.
Where should I start looking? I dont race the car but I still want everything to work as should.
In another forum one person posted a very similar problem on his SLK230K and solved it by doing this:
took out the "Relay Module" box. Mostly all of the relays are contained in this box and soldered to a circuit board. Then I had to open it up and find were the K40 Relay was on the circuit board. Wasn't hard to find because there were two BAD solder joints for the K40. I re-soldered the connections and I haven't had a problem since.
Please help.
Newbie
Joined: Aug 2005
Posts: 5
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From: Finland
S202 230 Komp
The supercharger start "working" at 2000 rpm.
If the charger doesn´t work it seemsthat the bypass is open.
The bypass is from airfilterbox to intake tube. (sorry my englis is not so good)
There is an valve, the cotrol of that supposed to be tested with das (MB tester at local maintenence)
If the charger doesn´t work it seemsthat the bypass is open.
The bypass is from airfilterbox to intake tube. (sorry my englis is not so good)
There is an valve, the cotrol of that supposed to be tested with das (MB tester at local maintenence)
Thread Starter
Member
Joined: Jul 2003
Posts: 230
Likes: 0
From: Toronto, Canada
99 C43 ///AMG
I will check that thanks.
Problem seems to be intermettant (not all the time)
Car when reaching above 3000rpm shutters a bit and hesitates when accelerating above that.
Problem seems to be intermettant (not all the time)
Car when reaching above 3000rpm shutters a bit and hesitates when accelerating above that.
Almost a Member!
Joined: Jan 2005
Posts: 68
Likes: 0
From: Toronto, Canada
1999 C230 Kompressor Sport
I agree, happened to my car, air valve get's stuck sometimes and doesn't allow pressure to create the boost....my machanic said it happens on the kompressor's saying that the vavle is really near the motor and the heat from the motor screws it up with time, dunno but after i changed it runs hard..
other things to look at maybe tune up or new intake filter...
if you need a really good mechanic in the T.O. area for Benz, let me know, really respected in the area and resonably priced..hope you find the problem..
other things to look at maybe tune up or new intake filter...
if you need a really good mechanic in the T.O. area for Benz, let me know, really respected in the area and resonably priced..hope you find the problem..
Last edited by bcmiguel; Aug 31, 2005 at 12:56 PM.
