mbenz76
MB Enthusiast
- Joined
- Dec 11, 2009
- Messages
- 1,055
- Car
- E350 AMG Night Edition Premium Plus Saloon
Hi All
I have 2010 E350 with TPMS fitted. Had the car since new and changed the tyres a couple of time (always by main dealer).
Had the rear drivers tyre start losing pressure over the week. While pumping tyres up I broke the opposite side valve removing pump. That one isn't leaking but needs replacing.
Took it to main dealer today (usually reasonable for me and handy) and they diagnosed a leaking valve on the one losing air and a new valve (as expected) on the other side.
Not a problem you might think.
I have been told the valves are "special" because of the TMPS sensors and that they may also damage the sensors when doing it, so worst case scenario is two valves and two sensors running at £160.
Now my problem with that is that I used to have a Renault with TPMS which has the same fancy valves and sensors and the Renault dealer always used to warn of the same potential issue. That said they never did break a sensor.
The Renault used to give pressure readings immediately as it had sensors. However the Mercedes tells me I have to drive for a while first. I thought because it didn't have sensors but instead ised the ESP to detect centrifugal force and measure the pressure. Therefore not needing fancy valves and sensors.
Can anyone please confirm whether my E350 is likely to have physical sensors and valves or whether it does use the ESP? Or how I may find out. Don't think the dealer is trying to rob me but not sure they are correct in their assumption of what it has installed either.
Thank you
I have 2010 E350 with TPMS fitted. Had the car since new and changed the tyres a couple of time (always by main dealer).
Had the rear drivers tyre start losing pressure over the week. While pumping tyres up I broke the opposite side valve removing pump. That one isn't leaking but needs replacing.
Took it to main dealer today (usually reasonable for me and handy) and they diagnosed a leaking valve on the one losing air and a new valve (as expected) on the other side.
Not a problem you might think.
I have been told the valves are "special" because of the TMPS sensors and that they may also damage the sensors when doing it, so worst case scenario is two valves and two sensors running at £160.
Now my problem with that is that I used to have a Renault with TPMS which has the same fancy valves and sensors and the Renault dealer always used to warn of the same potential issue. That said they never did break a sensor.
The Renault used to give pressure readings immediately as it had sensors. However the Mercedes tells me I have to drive for a while first. I thought because it didn't have sensors but instead ised the ESP to detect centrifugal force and measure the pressure. Therefore not needing fancy valves and sensors.
Can anyone please confirm whether my E350 is likely to have physical sensors and valves or whether it does use the ESP? Or how I may find out. Don't think the dealer is trying to rob me but not sure they are correct in their assumption of what it has installed either.
Thank you