TPMS (Tyre Pressure Monitoring System) valve repair on a BMW.

I was called out to a rush job today on a BMW 3 Series GT, the customer called into Hometyre to say that he had a broken TPMS sensor valve, and he needed an urgent repair as he was going on holiday tomorrow morning at 5am. I was not too far away and had some free time before my next job, so I went out to his house. He explained that his wife had bought and fitted aftermarket metal dust caps to the valves, not realising that the different metal would react to the TPMS valve stem causing corrosion. He went to remove the dust caps to check the tyre pressures before their trip, only to find them stuck, he used a pair of pliers, but in trying to undo the cap he snapped the valve stem causing an immediate deflation.

One phone call later and we were booked in to come to their aid.

I carry a set of different TPMS valve stems along with retaining nuts fitted with new rubber seals. I also have new blank sensors which we can programme to correspond with your car, so that its on-board computer doesn't even know they have been changed.

Once at the address, I soon had the car jacked up and the wheel removed, it was then taken into my van and the tyre was removed from the rim. This enabled me to get to the sensor valve and remove the retaining nut, taking the whole unit off. I was then able to compare it to our charts to find the correct fitting valve stem. Once found I was able to remove the old stem from the sensor, and fit the new stem, it was then fitted into the rim, and secured with a new nut and rubber seal.

The tyre was then refitted to the rim, and inflated to the correct pressure. The wheel was then balanced before fitting back on the car and being torqued to the correct setting. I then checked and adjusted the tyre pressures on the rest of the tyres, I then used my diagnostic tool to check that all of the TPMS sensors were working. Finally I completed a tyre report, and took a credit card payment from the customer using our on-board card reader. A receipt and full report will then be emailed through to the customer.

Should you have a problem with your sensors give us a call at Hometyre (Click here for contact details) to see what we can do for you, and remember that and new car fitted with sensor valves after 2014, must have them working to be able to pass an MOT.