240D with NOS switch, issue!! - Page 2 - PeachParts Mercedes-Benz Forum

arcticathlon · #16 11-07-2006, 12:39 AM

so i cut off the belt, but it has NOT fixed the issue. i can still turn on my AC knob and i regain my lost power back. what in the world can cause this. the AC is no longer hooked up via belt, what else gets turned on with the knob?

#17 11-07-2006, 12:45 AM

Just for S&G's, try removing the shutoff vacuum line from the injection pump and see if it makes a difference.

VeeDubTDI · #18 11-07-2006, 06:24 AM

A/C on = more power, or A/C off = more power?

Sorry if you mentioned that earlier, I'm a bit confused.

arcticathlon · #19 11-07-2006, 10:31 AM

ya same here

Luizzle · #20 04-27-2007, 01:00 PM

Well I don't have an MB yet (I'm just reading up on them cuz I plan on buying one in the next year) but I had a '78 chevy nova and it would also get extra power when the AC was switched on.. The reason was because since the AC compressor uses power, the engine has to compensate to avoid getting bogged down; so when the AC is switched on it activates a little solenoid or something that will adjust the throttle for a bit of additional power... If the compressor doesn't work then that extra power goes to your wheels!

Quote:

Originally Posted by arcticathlon

well the title is somewhat accurate. i am having a weird problem with my 240D. i just drove it about 60 miles and noticed that when i have the AC turn knob in the off position and while accelerating i turn it half way on, that i gain all this power and it has a short burst of speed. when i am on the highway, i am flooring the gas pedal and can barely keep it between 65-70. but when i turn the AC on it will go up 4-5mph in like 2 seconds. it acts just like i have NOS... i was using it constantly to get up to speed. whatever gear i am in, if i keep turning it off, wait 10 seconds and then turn it back on, i will get a nice burst of power!

now, someone please tell me why this is happening and what it could be. i am thinking it could be that since the AC does not work it would be slowing down the car. if i would take off the belt it might help.

btw, AC and Cruise control are both busted and all filters and fluids have been changed regularly. it is quite humerous to feel what is going on, and i think i will take a video of it to show you guys that i do have NOS, well sort of. my 0-60 time is somewhere in the 2 minute range, but with the NOS option i can get it closer to 90 seconds.

i feel like if i could get the NOS to be constantly on (in other words find the culprit that is causing the loss of power) then it would feel about as slow as my friends 300D non turbo.

suggestions would be appriciated.