can you guys advise why the supercharger on my sl 55 after driving it hard it just stops working until it cools down then it starts working again! please advise?

IC pump, do a search in this forum.

It must be overheating so it shuts off so the engine so it doesnt get messed up. What does the dash say? What is the temperature when this happens? Could be a million things we need more info!!!!!!

its your IC PUMP 100% ..... if u get it changed it would help slove the problem ..... doesnt cost much either

thanks Guys

Correct! Most of the time this problem is an IC pump.

2 weeks ago I had my pump changed by MB here in the UK and it curred the same problem.
I found out that of the 1500 SL 55's here in the UK, MB sold or fitted almost 500 last year.
You may be able to get MB to discount the part due to numbers replaced.
Good Luck.

May I ask where's the IC pump located on sl55????? DIY possible??

thanks

Ic pump i s located in the recess under the drivers side (uk right hand side) headlight.

There are two pumps there the larger top pump is not the pump you need to change the lower smaller bosch unit is the right one to swap out.

I'm in the UK an just ordered a CM30 Johnson pump.. $175 about £125 to replace my stock unit that is on its last legs.

Mercedes wanted £235 for the stock pump I didnt see the point in going for stock when a tried an tested upgrade pump is £125!

Chris.

these guys have them in stock and are shipping today http://www.eurocharged.com/shop/prod...5&category=all

Definately sounds like IC pump, went on mine the 1st day I had the car. Changed at Mercs under warranty.

My car's a 2002, so I guess mines on the way out!!

The large pump is the Charge air coolant pump, the small pump is the heater/washer tank heater pump.

The 2 pumps are stacked. The pump on the top is actually the secondary air injection pump, and the pump on the bottom is the IC pump.

Both pumps are accessed by taking off the right side wheel. removing the fender liners, and they are right there in the area that is behind the front bumper.

My car must be different than yours. The small pump with three ports is for the washer tank heater and cabin heater aux coolant circulation. The one big one looking up was the charge air coolant pump. $430 charge air pump vs $175 aux heater coolant pump at MB.

I'm a visual guy so I need pictures;