Tyre pressure sensors.

Has anyone tried...or is it known if the batteries can be replaced in the TPS wheel units???

That way it would save any reprogramming issues

It is possible but you need the right type of epoxy to seal the replacement battery back into the unit
See this thread on AdvRider
http://advrider.com/forums/showthread.php?t=746068

Make sure you read all the information in the thread
 
BMW have now stopped fitting tyre pressure ind on their cars or will be due to numbers of problems & as for faffing about with tyre sensor to replace battery, either buy a new one or don't use it, it ain't worth the hassle you misers,i love being shafted for more dough.:D
 
An insider told me that there is going to be EU legislation to make tyre pressure sensors compulsory - the reason? - nothing to do with safety but it was an easy way for governments to say that they were meeting climate change CO2 targets!!!

Apparently some dodgy research says that most vehicles are running incorrect tyre pressures and that this leads to higher rolling resistance hence increased fuel consumption.

More EU bollix legislation so that some gravy train MEPs can appear to be doing something without actually doing anything useful - it's all utter crap but the main supplier of tyre pressure monitors is doing very nicely out of this nonsense - hmmmmmmm.
 
oooh... Does that mean we'll get better roads in the UK then, to improve the rolling resistance.. nah, thought not.
 
TPS battery replacement

Hi,

Rear tyre showing no reading on dash, and decided to change the battery to see if I could!

Hardest part was getting tyre off safety ledges..

CR2032 replaced, and epoxied in. Soldered the connector to the batt.

Refitted and so far so good.
 

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Hi,

Rear tyre showing no reading on dash, and decided to change the battery to see if I could!

Hardest part was getting tyre off safety ledges..

CR2032 replaced, and epoxied in. Soldered the connector to the batt.

Refitted and so far so good.

Excellent pics thanks. I have same job to do when I next take the rear tyre off mine.
 
I won't show you the scratches on the rim, even with plastic on the tyre levers. Arrrgh. Pass the black marker..

I used a sharp little knife to cut the sealer which is flexible stuff. The battery connection strips are tack-welded to the battery so I put the same sharp little knife under them and broke the tacks. Cleaned up, bent the lower strip up a bit, pushed new battery into the hole. To solder the top strip to batt, I had to scratch the batt and tin it, then hold strip down (springy!) and solder it to the batt. I would sandpaper the battery and tin it before inserting next time. Smathered in a spoonful or so of some epoxy stuff. I would get some flexible stuff next time. I think there is a switch in the sensor (small rattle when you shake it) which activates when wheel is rotating to save batt when standing. Reading came up after a few hundred yards riding.

Main learning is to get dealer to take the tyre off next time, he has a good piece of kit and has not marked the rims in the past.

The sensor is not in the middle of the back rim, slight offset. I took it out the side nearest to sensor and I should have done opposite side. There is more room between sensor and safety ledge to let tyre bead sit in while remounting bead on rim diametrically opposite.

I though I might flex the tyre enough to get the sensor out after breaking one bead, but impossible. You have to free the opposite bead off the safety ledge to have enough room to work.

Bin
 
Smathered in a spoonful or so of some epoxy stuff. I would get some flexible stuff next time.

I've just been using some Ever Build "Stixall" and it sets like firm black rubber, it's a grip fill type product that's not as soft as Silicone sealant . It should be ideal for the job.

Available from your local Toolstation depot for about a fiver.
 
Officially no, as they are sealed units. I have seen mention of folks planning to break a dead one open to see how it goes together/how the battery is fitted on other boards, but never seen a report of their results.

Apparently, they can be done and the TPS code won't be affected (so they said). Carefully dig out the potting compound, solder in a new battery and refill the compound with electronics grade silicone filler.

Search found it in a few seconds "TPS+battery"
http://www.ukgser.com/forums/showthread.php?302012-TPS-BATTERY-REPLACEMENT&highlight=TPS+battery
 
Just replaced the rear tps, the one I put a new battery in 18? months ago....
Used the GS-911 to insert the new tps code. It tells you to deflate the tyre to get the sensor to communicate with the system, and that worked. Just deflated it a bit, not flat.
Easily done while changing the tyres 3 months ago, if I had not ordered the wrong sensors that time.....so repeated the job using tyre levers. Cue black marker to fix the scratches...
 
I recently replaced some lead flashing on my roof and noticed lead compatible silicone sealant is non corrosive. If you can't find the electronics grade the lead flashing grade will probably do the job. Talk to your local roofer. ;)
 
I recently replaced some lead flashing on my roof and noticed lead compatible silicone sealant is non corrosive. If you can't find the electronics grade the lead flashing grade will probably do the job. Talk to your local roofer. ;)

I can't quite understand the link with lead compatible silicon sealant to fitting new tyre pressure sensors :nenau
 
I can't quite understand the link with lead compatible silicon sealant to fitting new tyre pressure sensors :nenau

Because if you are fitting a new CR2032 battery (with tags) into the old sensor it has to be sealed with a non corrosive compound.
New button battery <£10 plus a bit of careful screw drivering.
New sensor - minimal change from £100.

This sensor is slightly different to mine but principle is the same and you can use tagged batteries http://www.ebay.co.uk/itm/CR2032-1H...23?pt=LH_DefaultDomain_15&hash=item20dd34d69f

 
...They're also made of cheese, be really gentle with them when you stick air lines / foot pumps on or you'll snap them....
Its 5 years + since you posted Giles but only last Friday when I learnt how right you are when returning to collect my bike after having two tyres fitted I was informed that one of my valves was broken. Even though I insisted it was ok when I brought the bike in they denied damaging it so I am left with probably and perhaps someone can advise me on this a £200 bill for BMW to replace it.
 
Its 5 years + since you posted Giles but only last Friday when I learnt how right you are when returning to collect my bike after having two tyres fitted I was informed that one of my valves was broken. Even though I insisted it was ok when I brought the bike in they denied damaging it so I am left with probably and perhaps someone can advise me on this a £200 bill for BMW to replace it.

This might make you feel slighly better. I have been quoted around £130 to replace my front wheel sensor. I am waiting till I need a new tyre and will get them both done together. Personally it would be nice to have the option to turn them off to avoid having the yellow triangle on the dash constantly.
 


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