Tyre Pressures

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Comments

  • JVB66
    JVB66 Forum Participant Posts: 22,892
    1000 Comments
    edited August 2018 #32

    Most motor caravan builders?quote the base vehicles weights from the plate on the door piller

  • Dave L S
    Dave L S Forum Participant Posts: 105
    edited August 2018 #33

    Unfortunately, mine doesn't, not even the tyre pressure, for which it states "see handbook", and what does the handbook say for the tyre pressures?  80psi all round. surprised

    As such, I guess there are a lot of mho owners driving around on unnecessarily over inflated tyres, and putting up with an uncomfoartble ride.

    It took my max axle weights from the VIN Plate.

  • JVB66
    JVB66 Forum Participant Posts: 22,892
    1000 Comments
    edited August 2018 #34

    Sorry mean tyre pressures  on door piller,our Autocruise in the handbook it quoted tyre pressures for each model all well below  what was on base vehicle plate

  • Dave L S
    Dave L S Forum Participant Posts: 105
    edited August 2018 #35

    I think the moral of the story is "be guided by the tyre manufacturer"

    He knows his product better than the manufacturer of the vehicle they are fitted to.

  • hitchglitch
    hitchglitch Forum Participant Posts: 3,007
    1000 Comments
    edited September 2018 #36

    Haven’t had time to read all the posts but having faced this problem the solution is very simple.

    Firstly, the maximum pressure stamped on the Continental tyre is for USA market and not relevant to UK.

    Secondly, go to a weighbridge fully loaded including driver and passenger and get both axle weights.

    Thirdly, use the Continental charts to determine pressures.

    Fourth, you run the risk of being below the setting levels of the tpr system and may get a continual warning. You can’t usually reset this yourself.

    Lastly, motorhomes are vans really and will bump and rattle. You just have to get used to it.

  • TonyIshUK
    TonyIshUK Forum Participant Posts: 296
    100 Comments
    edited September 2018 #37

    Only people that can advise you are the tyre manufacturers.  Given the max axle weights front and rear .  Drop the a call and follow their recommendations .

    it is a VERY useful exercise to know your weight and payload, but the diffence between that and full axle load will not make a great deal of difference when it comes to pressures.

    rgds

  • Beatsboy59
    Beatsboy59 Forum Participant Posts: 13
    edited September 2018 #38

    Quote: "I'm inclined to drop them back to the tyre manufacture's specified limit (69psi) or just below." A common misunderstanding,the max inflation is printed on the sidewall as 5.5 Bar /80 psi.The 69psi refers to a sample weight,also printed on the sidewall.

     

  • KeithandMargaret
    KeithandMargaret Forum Participant Posts: 660
    500 Comments
    edited September 2018 #39

    After weighing the MH in 'holiday' mode (includes full water and fuel tanks, driver and passenger, dog and a 15kg months supply of dog food and a wardrobe full of clothes we'll probably never use) I went to the Continental Tyre pressure site and using the axle weights from the weighbridge set my tyres to 51 psi Front and 61 psi Rear.

    This gives a much smoother ride for my Pilote over poor road surfaces and speed bumps, drives in a straight line with no noticeable deviation and the tyres are warm but not hot after a long journey.

    They also seem to have little wear after 30,000 miles but may need changing as they get older, six years now, but have no noticeable cracks or scuff marks.

    Setting them at the maximum pressure, usually 80 psi, when it is not necessary will only benefit those wishing to check the strength of their denture adhesive.

     

  • ATDel
    ATDel Forum Participant Posts: 335
    edited September 2018 #40

    We have an 18 plate Peugeot based vehicle, same issue with tyre pressures, we have weighed and reduced pressures accordingly but have a constant yellow warning on the dashboard. Phoned a couple of Peugeot dealers but they say they can’t do anything, I have read that they can but won’t!!

    so I have a high tec safety monitoring system which I can’t use unless I choose to rattle the hell out of the mo and my false teeth

    🤬🤬

  • KeithandMargaret
    KeithandMargaret Forum Participant Posts: 660
    500 Comments
    edited September 2018 #41

    Kev - I'm no expert but I believe the lowest pressure you can run the tyres, before a light warns you, is set and recorded in the ECU.

    If Peugeot won't, or can't, reset to allow you to lower the pressures could I suggest you contact an ECU repair business and ask them if it is possible to help you by resetting the ECU.

    Try asking ECU Testing of Heanor (Derbyshire) 01773 535638 if they can help with advice – I had to use them when my ECU started malfunctioning and they were very helpful in repairing it.

    I don't know if the problem you have can be sorted out but for the price of a phone call it may be worth a punt to preserve your gnashers.

    Also ask the same question on the free forums of the 'Out&Aboutlive' forums - https://www.outandaboutlive.co.uk/ - the forums of MMM who have very good people with much more technical know-how than me,

    Hope this helps.

     

  • rayjsj
    rayjsj Forum Participant Posts: 930
    500 Comments
    edited September 2018 #42

    Totally useless system if not adjustable and settable by the owner of the vehicle.

     I would get the senders removed, and replace the system with a settableTyresafe system, which works and doesnt ' cry wolf'  by posting an error which doesnt exist. 

  • ATDel
    ATDel Forum Participant Posts: 335
    edited September 2018 #43

    Thanks K&M will get it sorted at some stage.

    The problem with removing the senders is I’m not sure if it would be an mot fail as TPMS is now a legal requirement to have on all new vehicles. That would not solve the problem of having a yellow awning on the dash and it may even be red without senders.

    The whole system is a cock up, with a vehicle like a mh the weights can differ so much but the manufacturers set them to the highest setting and sod the end user. We are not like hgv vehicles running on air we are Motorhomes running on springs and it’s uncomfortable setting to the stupid recommendations 

    Rant over

    Kev

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