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Tyre Pressure Monitoring Systems to be included in MoT from 2012 |
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Dave_Retired.
 
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    Member No: #1
Joined: Aug 07 2006Location: Northumberland |
The latest commission directive, 2010/48/EU, states that from January 2012, any vehicle originally fitted with TPMS will have to have it fully operable in order to pass the annual MOT test. This will then mean that even one faulty sensor will be enough to score a 'fail'. Sensor replacement has always meant that. So all of you who have disabled the system and fitted standard valves could be in for an MOT failure if you don't get new valves fitted and enabled before then. |
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BigJohnD
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 Member No: #82
Joined: Jan 22 2007Location: Hoylake |
Here's the actual section: 5.2.3 Tyres (g) Air pressure-monitoring system malfunctioning or obviously inoperative The whole document is here: - Click Here - (1Mb 23 pages PDF) |
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Biohead
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 Member No: #6049
Joined: Nov 05 2008Location: Bracknell |
What about those who fit new wheels that can't really accomodate the bigger valves/sensors? I'm sure as it comes closer to the time, we might get a bit more info about things like that... or then again maybe not. |
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BigJohnD
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Member No: #82
Joined: Jan 22 2007Location: Hoylake |
I suspect that it's more about an original system that doesn't work for some reason, e.g. error messages are appearing on the dash for some reason or the system is clearly faulty, like one sensor doesn't work. I would imagine replacement wheels with regular valves and the monitoring system wholly disabled should be OK. If there are warnings on the dash (correct or false), then they'll need to be attended to. |
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hertsnminds
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  Member No: #1276
Joined: Oct 09 2007Location: Scotland |
This means the monitoring system being fitted must be recorded against the cars VIN number and the spec held by DVLA. If you remove all the sensor valves and tell the ECU the system is not fitted to the car there will be no other way to even know the car ever had the system fitted. | ||
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Ham
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 Member No: #69
Joined: Jan 10 2007Location: Derby, England |
MOT stations are going to have an head ache now! | ||
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Darren
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 Member No: #5650
Joined: Oct 03 2008Location: Portsmouth, UK |
This has left me with a dilemma. I currently run with 3 pressure sensing valves and one standard where one broke. I purchased the replacement a while back and I wasn't sure if I should get it fitted or sell it and when my tyres are replaced have the other three removed and the system turned off. | ||
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Dave_Retired.
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Member No: #1
Joined: Aug 07 2006Location: Northumberland |
No dilema, get the replacement fitted when the tyres are replaced unless of course your selling the car before 2012 | ||
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PPP7
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 Member No: #135
Joined: Feb 25 2007Location: South Midlands |
Section 5.2.3. states in point (h) that there must be a visual inspection of the ‘air pressure monitoring system’ the reason for a failure of the system would be ‘air pressure monitoring system malfunctioning or obviously inoperative’. I doubt many C4's would fail as long the system is not showing any warnings on the display? You rarely get any warnings on a stationary C4. They are saying it's just a visual check, but nobody seems 100% sure |
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Rich_Eason
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 Member No: #90
Joined: Jan 29 2007Location: Bristol |
Not sure if time and rules allow it, but couldn't they just let down one of the tyres and see what happens? More alignment to type approval and away from what the MOT was originally intended to do... My Abarth has tyre pressure sensors, only difference is that they are mechanical and not electronic (a little red dot appears when low). They are notoriously unreliable and therefore only kept on as locking dust caps. Question is, are they a monitoring system or an accessory guide? I guess when the time comes I swap them with normal caps as supplied on a normal A500....which to me is bonkers. We've already had the suggested "illegal" remaps, Non OEM alloy wheels, dash warning lights (I can see why for airbags but for the charging circuits)? Does anyone else feel that the latest suggested changes are clutching at straws? I personally also struggle to see MOT testers knowing which C4's come with TPS and which ones dont... |
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Rich_Eason
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Member No: #90
Joined: Jan 29 2007Location: Bristol |
Rich_Eason wrote ... We've already had the suggested "illegal" remaps, And there it is...."ILLEGAL"!  6.1.9. Engine performance (a) Control unit illegal modified. (b) Illegal engine modification. And a few other things... 7.10. Speed limitation device (if fitted/required) 8.2.1.1 Exhaust emissions control equipment.... Depollution System Faulty 
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PPP7
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Member No: #135
Joined: Feb 25 2007Location: South Midlands |
It's the EU gone mad.... I forgot about the remap thing, as it's something I was considering getting done, but if they can trace it somehow it may fail the MOT? What next? Are they going to fail you if you have a non standard radio or satnav?  It sounds like the days of modifying cars is nearly over. |
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mooresey
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  Member No: #18464
Joined: Feb 27 2011Location: Church Gresley, Derbyshire |
How would they know if the car has been remapped? Would they have all the maps on file to compare them to? | ||
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Rich_Eason
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Member No: #90
Joined: Jan 29 2007Location: Bristol |
mooresey wrote ... How would they know if the car has been remapped? Would they have all the maps on file to compare them to? Exactly... Unless the MOT stations have specific diagnostic equipment for every vehicle sold within the UK market, and were trained and competent to use it in a way that doesnt goose your car then I dont see how they can test it unless....and this is something that has been niggling me about these recent ammendments, leading to a very type/model specific approach to testing which means - getting it done at the vehicle manufactures dealer. A quick skim of the doc also mentions "specification" which reading further suggests that the baseline being tested against is the spec of the car and how it achieved its "type approval" on entry to the market. The "new" MOT test appears not to be a general condition check looking for good condition, showing no negetive effects of wear, but more about what the car looks like now, what should it look like and whats been added. |
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PPP7
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Member No: #135
Joined: Feb 25 2007Location: South Midlands |
From what I have read the MOT will be looking for a change to the CO2 levels. If your vehicle is outside the CO2 range for your particular model then it's a fail, but this is only speculation so far. |
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