Late

I asked the same question but never got an answer... Just unplug the battery in the trunk and you will be fine.

aphklb

I would certainly appreciate it if you could send me your documentation

Jezza

Just unplug the consumer battery, you dont need to do anything else. You can re-use the sensors if they have not already worn through, its likely only one has actually gone through.

Richard

I think the official line is you use Star Diag to turn off the SBC 'prime' function whilst changing the pads. The other way (most) people do it is to disconnect the connector on the SBC pump so it has no power and can not operate. You hear the priming sometimes when you unlock/open the drivers door.

****WARNING*****

If you do not disable the SBC it can prime itself whilst you are working on the brake pads, this will cause the brake pads to move in AND CHOP OFF YOUR FINGERS

****WARNING*****

Richard

Please dont just unplug the consumer battery.

The consumer battery and the battery under the bonnet are connected via the battery control module so if you don't disconnect both power can make it to the SBC, and your fingers are worth more than that risk.
SBC is a critical function and it will work 100% with a flat consumer battery - this means power will quite hapilly be fed from the starter battery.

Also sensors are cheap (certainly not $12 here in Europe) and its easy to change them while apart - we're not talking very often here (i.e much expense really considering how much fuel the SL500 will use!!) and in terms of labour its easy to do them whilst its apart.


R

bhumerang

Just wondering how you disabled the SBC to work on the brakes? Is it as simple as unplugging it and then plugging back in after you're done? If so, does that leave any codes after?

Thanks, Ed

cadbob

Dont Unplug it. Just Hide your remote key and dont open any doors while doing break job.

stykshooter

Four ways to disable that I know of I'm sure someone will mention other ways. 1. disconnect consumer battery 2. Unplug SBC, see link below 3. Keep your keys away from the car 4. Star Diag to turn off the SBC

mkirincic

I would not mess around with the SBC connector. If you want to feel safe disconnect the batteries. I did this when I replaced my pads and no issues.

it is a relatively easy job to replace the pads.

850csi

Guys, I have a really dumb question. I have the “brake wear” message in my car. I can see visually that the rear pads are just about finished (and so presumably it’s the rear left sensor that is tripping), but is there a method of seeing which sensor is going off electronically? Other than STAR?

sean65

I may be over simplifying, but can't you just have a look at the sensor to see if which one is broken? If you can visually inspect the brake pads in the rear, and they're done, then that's obvious. If you can't inspect the front pads, can you pull the sensor to see if it's broken?

Speed750

I just did all 4 corners on the cheap. All you need is 2 sensors and they are cheap like $3 each on Rock auto.

Ivan750

Hi, I want to change the rear brake pads of my car, please can you send me photos and explain how you have changed the brake pads to your SL. thanks.

ivan750cc@hotmail.com