[Toddy.46]

Just had four MPS4 fitted, on resetting the tpms it goes to 49% then says RDC failed. Is this an issue of having tyres fitted which are not run flats? Car is 2014 335xd f31?? Please help, i also had 4 wheel alignment completed

[Alscoob]

Originally Posted by Toddy.46

Just had four MPS4 fitted, on resetting the tpms it goes to 49% then says RDC failed. Is this an issue of having tyres fitted which are not run flats? Car is 2014 335xd f31?? Please help, i also had 4 wheel alignment completed

Nothing to do with the tyres, run flat or not or alignment, doesn't make any difference.

Did they change the actual valves in the TPMS sensors, they may have damage or un settled something perhaps? or if they took the sensors off the wheels they may not have been refitted correctly.

Should take it back.

[ukbeemerboy]

Originally Posted by Toddy.46

Just had four MPS4 fitted, on resetting the tpms it goes to 49% then says RDC failed. Is this an issue of having tyres fitted which are not run flats? Car is 2014 335xd f31?? Please help, i also had 4 wheel alignment completed

They’ve either damaged one of the sensors or cooked the receiver somehow. Doesn’t matter what tyres are fitted.

[Toddy.46]

Ive spoken with the garage and they have said to bring it back in tomorrow at 1pm. He said all he can do is plug it in and see what it says. Am i being mugged and do i have a leg to stand on seen as they are non run flats which i have had fitted?

[bishbosh]

Originally Posted by Toddy.46

Ive spoken with the garage and they have said to bring it back in tomorrow at 1pm. He said all he can do is plug it in and see what it says. Am i being mugged and do i have a leg to stand on seen as they are non run flats which i have had fitted?

As has been said, nothing to do with having non run flats. The tpms system doesn't know what tyres are fitted.

Possibly the fitters have damaged a sensor.

[James-335dx]

Originally Posted by Toddy.46

Ive spoken with the garage and they have said to bring it back in tomorrow at 1pm. He said all he can do is plug it in and see what it says. Am i being mugged and do i have a leg to stand on seen as they are non run flats which i have had fitted?

Depends what they say when they get the error code? It's worth trying to reset the tpms a few times as mine failed when I last had tyres but tried it a couple of times and it eventually worked. I have MPS4S NRF on mine too and certainly no issues.

Hope that helps?

[nc30v4]

I was having TPMS issues with my other car, a Nissan 350z that I brought back from the USA. Because the Z was for the US market the TPMS sensors operates at 315MHz. I brought a Autel TS508 TPMS diagnostic and service tool to check the battery level of each wheel sensor. The tool, when held close the wheel sensor was able to energise the sensor and read the voltage level and it's unique ID. I was able to check that the ECU had the same ID set for the same wheel position, ie FR FL RR and RL etc. Strangely after this 'stimulation' the problem went away.

Back to BMWs, I used the same tool set for 433MHz and was able to check the sensors on my BMW, all ok, battery levels good for a few more years.

Maybe someone close to you has this tool and is able to independently check to see if the sensors are working, and to see if they match the location as programmed in the cars ECU

[bishbosh]

Originally Posted by nc30v4

I was having TPMS issues with my other car, a Nissan 350z that I brought back from the USA. Because the Z was for the US market the TPMS sensors operates at 315MHz. I brought a Autel TS508 TPMS diagnostic and service tool to check the battery level of each wheel sensor. The tool, when held close the wheel sensor was able to energise the sensor and read the voltage level and it's unique ID. I was able to check that the ECU had the same ID set for the same wheel position, ie FR FL RR and RL etc. Strangely after this 'stimulation' the problem went away.

Back to BMWs, I used the same tool set for 433MHz and was able to check the sensors on my BMW, all ok, battery levels good for a few more years.

Maybe someone close to you has this tool and is able to independently check to see if the sensors are working, and to see if they match the location as programmed in the cars ECU

The location of each sensor is determined automatically. That's why when you reset it you have to drive around for a few minutes - so the car learns where each sensor is.

Another point to note is that not all sensors are the same, speaking from experience 5 series tpms sensors won't work on a 3 series and vice versa.

It's possible one of the sensors' batteries has failed and the tool you described should show that, I think the lifetime of the battery is around 7 years or so.

[nc30v4]

A particular car is set up to look for sensors with a ID that's programmed into the ECU. As long at the sensor is working at the correct frequently and transmitting the correct ID the ECU will pick read it. This link might shine some light of the need to ensure the same code is used. https://tpmswarehouse.co.uk/frequent...ue-identifier7

[bishbosh]

Originally Posted by nc30v4

A particular car is set up to look for sensors with a ID that's programmed into the ECU. As long at the sensor is working at the correct frequently and transmitting the correct ID the ECU will pick read it. This link might shine some light of the need to ensure the same code is used. https://tpmswarehouse.co.uk/frequent...ue-identifier7

You're saying this on that other thread, but you don't need to faff around with cloning IDs. When you reset the tpms system the ecu learns which sensor is which, it's done automatically when you reset the tpms system in the idrive.

Case in point - I have 2 sets of wheels: winters and summers, both sets have tpms sensors. When I swap the the wheels over all I have to do is reset the tpms system and that's it, nothing needs to be cloned.

[nc30v4]

Hey guys, just trying to be helpful. Not out to win points.

[Davetwilliams]

I have also fitted MPS4 non run flats to my summer wheels. No problems when I reset the TPMS. Initially I was told a fib by Kwik fit that it wouldn’t work - I remember checking and reading at the time that older BMWs had a flat tyre warning system that monitored the profile of the tyres. Anyway I also have winters that are still runflats and resetting TPMS works ok. Sometimes I just have to drive once around my block to hit 100% others it takes longer. I think that I found driving steadily and not stopping got them to reset quicker - don’t get carried away though and drive through any red lights 😂

[doncarlyon]

Plenty cars have non rft tyres and tpms and its not an issue.

They have damaged a sensor I'd say.

[siwilson2000]

BMW TPMS enabled cars can also come with non RFT as standard so I don’t see why it would be a problem. In any event, I had my RFTs replaced with PS4S last week by Kwik-Fit. Instead of a valve replacement they did a TPMS service. Not sure what that entails but I suspect it’s just new batteries. Anyhow, all good and no errors.

[Toddy.46]

Hi all, ive taken the car back, the garage cleared the code which was RDC not connecting, 10mins down the road, failed again. The garage said to take it back on Tuesday, but said not sure what the problem is. Would the system fail if there was an issue with 1 of the tpms or is this something else??

[BBri89]

Originally Posted by siwilson2000

BMW TPMS enabled cars can also come with non RFT as standard so I don’t see why it would be a problem. In any event, I had my RFTs replaced with PS4S last week by Kwik-Fit. Instead of a valve replacement they did a TPMS service. Not sure what that entails but I suspect it’s just new batteries. Anyhow, all good and no errors.

TPMS service is likely replacing the rubber o-ring on the metal hexagonal valve.

The TPMS batteries are not replaceable afaik, and need the whole TPMS sensor replacing instead.