Four Bentley TPMS sensors (tyre pressure monitoring sensors) in St Albans AL3

We occasionally do work for some car dealers. One of our existing contacts had a Bentley that has been into the main dealer and they had diagnosed that the 4 TPMS (Tyre pressure monitoring sensors) had failed on the car.

The customer had purchased replacement sensors and wanted them fitted to the car, normally we recommend that we supply the sensors so if they fail or have a problem we will be responsible for rectifying the problem. As the customer already had the sensors we agreed that we would fit them but could not be responsible for the actual sensors.

Arrived at the job and started work, the first thing to do is check that the problem is with the existing sensors, we carry a reader that can check the transmission from the sensors and report on their condition, the sensors on the car where not transmitting so they were indeed dead. Not to check the 4 new sensors as it is not worth fitting them if they are faulty, the reader came back saying they are all ok and the battery are at 100%.

Now to start the fitment, removed the first 2 wheels and broke the top bead so the tyre could be depressed, this allows us to get to the old sensor valves and remove them. Once removed the surface of the wheel where the sensors will sit is cleaned up so that you get a good seal between the wheel and the sensor. Fitted the new sensor and tightened up to the correct torque and inflated the tyre. First wheel done the same was done to the second. The wheels where then put back on the car and tightened up to the Bentley torque specification.

Now jacked the other 2 wheels up and repeated the same process on these and then fitted the wheels back on to the car and again torqued then up to the correct torque.

The sensors on a Bentley are known as 'self-learning', this means that the car will automatically recognise the replacement sensors after you have driven the car for a couple of miles, if the sensors are not 'self-learning' they have to be triggered so the car recognises them. We could not take the car out for a quick drive but the customer was aware of this and was going to take the car out later on.

Took the payment for the job and started to clear up the tools. The customer then said that he had another Bentley that had a slow puncture and could we look at it. Went over to the vehicle but could not see anything obvious, jacked up the car and removed the wheel. After checking the tyre no sign of a puncture could be found, this car also had TPMS valves so checked the valve to see if it was leaking, it was. The valve had come lose so all we had to do was tighten it up and the leak stopped. As this only took a couple of extra minutes and he was a repeat customer we did not charge him for this.

If you have a fault with your TPMS sensors or the dash board light has come on to say you have a puncture call Hometyre and we will come to you to either service your sensor valves or replace them if they have reached the end of the operational life.

Just call 0800 783 93 10 or 0333 444 5454 and we will come to you.