Is Supercharger power loss not from HE pump?
Thread Starter
Member
Joined: May 2007
Posts: 228
Likes: 1
From: LA, CA
CLS55 black opal
Is Supercharger power loss not from HE pump?
I have a CLS55. The dealer said the pump wasn't throwing a code, but I'm not sure if it's supposed to throw a code?
I thought I had read somewhere where even if these things fail no code actually is shown.?
When I went to the track (auto not drag), it was clear that the supercharger was shutting off for about 50-75% of each lap. I would purposely have to take it easy around some areas to make sure it cooled down enough and hopefully get it to turn on for the straights.
Anyone with more experience know if the dealer was just dumb and didn't check it properly? Would switching to a cm30 just be a waste of time and money?
I'd still like the car to work properly out on the race track without it being overly heatsoaked for 75% of the track.
I thought I had read somewhere where even if these things fail no code actually is shown.?
When I went to the track (auto not drag), it was clear that the supercharger was shutting off for about 50-75% of each lap. I would purposely have to take it easy around some areas to make sure it cooled down enough and hopefully get it to turn on for the straights.
Anyone with more experience know if the dealer was just dumb and didn't check it properly? Would switching to a cm30 just be a waste of time and money?
I'd still like the car to work properly out on the race track without it being overly heatsoaked for 75% of the track.
Thread Starter
Member
Joined: May 2007
Posts: 228
Likes: 1
From: LA, CA
CLS55 black opal
I love mechanics. I hate dealer repair reps. It's almost impossible to find one that actually even likes cars.
Will order up a Johnson CM30. Anyone know if the stock fitting is 16mm or 20mm?
Will order up a Johnson CM30. Anyone know if the stock fitting is 16mm or 20mm?
Member
Joined: Oct 2010
Posts: 212
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From: Canfield, OH
CLS 55, Audi A7, Range Rover Sport
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From: Illinois
cls55
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Joined: Dec 2008
Posts: 163
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From: Chico, CA
S55K AMG
Cm30 will install with no hitches. You can either wrap the pump in rubber and use the stock bracket or drill some holes and use the bracket that comes with the cm30. If hoses do not fit, you can use a smaller clamps and that should seal her tight. The Meziere pump is recommended over the Johnson.
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Joined: Mar 2011
Posts: 193
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From: Orange County
Viper SRT-10, CLS 55 AMG, 2012 Tacoma Off Road 4x4
My CLS is doing the same thing... When I get aggressive with the car the supercharger turns off after after only a few minutes. I'd really like to know what is the best pump to avoid this.
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Member
Joined: Oct 2010
Posts: 212
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From: Canfield, OH
CLS 55, Audi A7, Range Rover Sport
After doing some research, I've seen a lot of ppl go with the Johnson cm30. Obviously there may be better ones, but I think the Johnson will do, at least for myself.
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Joined: Mar 2011
Posts: 193
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From: Orange County
Viper SRT-10, CLS 55 AMG, 2012 Tacoma Off Road 4x4
*Update.. After reading this post I took my car into the dealership and sure enough my pump was bad along with a speed sensor ($1,350.00). I wonder how hard it is to run these cars with the pump not working? I drive my CLS very aggressively and the supercharger was turning off daily. Not good I would imagine, thoughts????
