Hi, I'm buying new front tyres for my 2017 MK7.5 Fiesta Red Edition. I've looked for prices on the website of a very popular and highly rated independent tyre centre in my home town and they are recommending that the TPMS batteries are changed when fitting new tyres due to "the age of the vehicle" (I had to enter the registration number). TPMS replacement isn't a service that they actually offer. My question is whether I really should be looking at changing the TPMS batteries and is it even possible to do that ? Do most people just wait until there is a TPMS problem then have it fixed at a garage ? I believe the TPMS has to work correctly for an MoT these days which mine does at the moment. Thanks in advance.

The Ford factory fitted TPMS wheel sensors are sealed and battery replacement is not an option.

They generally last between 7 and 10 years before the battery fails (depending on use). A new sensor from Ford is about £30

Thank you. Do you know whether they have to be programmed to the car on the MK 7.5 ? I have swapped the wheels around front to back before and had no problems doing that. I do remember having to reset the pressure monitor on the vehicle settings (radio display) once after having a puncture fixed.

As far as I know the car should relearn the sensor after 7 miles or so.

I'm sure @iantt will be able to give you a more definite answer.

If your putting new sensors on then it generally the case that the sensors are sleep when new and once the tyre has been pumped up the sensor is then awake. Taking for a drive will learn them to car. As your car doesn't show the tyre pressures on the cluster , programming not required. 

Brilliant. Thank you both for your help 🙂 . I may consider getting a couple of genuine Ford sensors to have fitted with the two new tyres.

My partner's fiesta 2016 is on the original sensors. I'm not going to bother until one  fails. Then swap a new one on. Luckily I have access to a tyre machine so no cost involved. Probably got a few sensors kicking about too. 

I'll leave the sensors until there is a problem now I've thought about it more. If I get a problem I'll just get it sorted for the MoT. I nearly changed the car for a mk8 ST-Line X last week but the prices for a 3 year old car have gone sky high and I couldn't justify £17K for something almost 3 years old (although admittedly it was very low milage and immaculate). I bought mine pre registered (new with delivery miles) in 2017 and it was only £12K from the same Ford dealer.

Hi I have been quoted £100 per tyre for one of these sensor batteries including fitting  -is that a rip off? 2 need replacing, 2 are at 40% for some reason. None of them have ever been replaced to my knowledge. 

Thanks

8 minutes ago, mutantcamel said:

Hi I have been quoted £100 per tyre for one of these sensor batteries including fitting  -is that a rip off? 2 need replacing, 2 are at 40% for some reason. None of them have ever been replaced to my knowledge. 

Thanks

Yes, that's a rip off.  Go to another garage.  If the 2 at 40% also have fairly worn tyres, I would leave those until the tyres need changing to save doubling that labour cost.

Thanks - appreciate your help.

It was Halfords who quoted me. I will double check with them which tyres the sensors need replacing on and also check the wear on the other two!