I have an '06 E500 Wagon. My owner's manual says I have a Tire Pressure Monitoring System, but I can't seem to access it in the instrument cluster. Is it possible that it is optional equipment that I didn't get? Any help would be appreciated.

Thanks.

Bob Roane

Look at the window sticker and see if it listed. The manual covers all options you can get on the car even the ones you don't have on yours so even if it is mentioned in the manual it doesn't mean that you have it.

Also it may be the system that will light up an idiot light that says "Check Tire Pressure", and not report which tire is low or be able to read individual tire pressures. One system uses individual TP Senders at each tire the other system uses ABS to note different tire rotational speeds due to a change in tire diameter due to losing air... so there's nothing for you to access or see as far as pressures unless you lose air.

Your 06 E-Class is equipped with a TPMS System that utilizes individual tpms sensors in each wheel to monitor tire pressure. The tire pressure sensor OEM# is 0008223406 and these are 315 Mhz frequency. There are also an aftermarket replacement for this sensor part# D9004.

'06 owners manual notes this is optional equipment.

Starting at digital speedo, arrow (not page) through choices to TPMS if it's there.

Can the factory system be added to a car that was not originally delivered with one installed?

I agree with this statement. Will it be nice when this warning light comes on, it also tells us which tire has low pressure? Hmm, come to think of it, that will be really nice because we don't have to check all the tires.

Yes it can be done..but its $$$$ as one will need the wire harness / 4 TPMS sensors /control unit // and LOTS and LOTS of labor as the wire harness goes to each corner of the car


Another option is to version code the BASIC TPS system via the Star aka SDS ..as it uses the Wheel speed via the ABS signal ..not as good as the Full TPMS but it works when a tire goes ...

Are USA dealers permitted to Activate this feature by MBUSA?

Also... When "a tire goes", isnt any driver gonna become aware of it "going"?

Ahh NO as My wife drove home with a flat ..wasted the tire...said NOTHING ....After that the full TPS Install was done ...