Long post alert!!
I've had plenty of tyre issues on my 240 since buying. When I changed the rears from stock MPSS to PS4 the car was dangerous, as per the thread I made about it. It was weaving around at the back over 50mph and it was difficult to control the car.
So I bit the bullet and ditched the front MPSS with 4mm of tread left and put some more PS4 on. This fixed the issue thank god. The car was then perfect for 11k miles on the PS4 - a joy to drive, very very quick off the line wet or dry and even with just 2mm tread left on the rears the grip was unreal.
However, those rear PS4 wore out recently so I had brand new PS5 fitted instead of PS4. So I currently have new PS5 R and 18 month old PS4 front with 4-5mm tread.
And once again I've had nothing but issues. On the motorway, going over 50mph it was again swaying badly so I thought the pressure may be wrong - they were all over thanks to ATS so I put them to my usual 32F/36R setting and tested them - it was still not right.
So I tried more in the rears and put it to 34F and 40R PSI and it was unbelievably dangerous - the car was literally moving at the rear as if it had 4WS and as I hit 50 it was swaying around - I honestly thought it was going to spin!!
So I tried lowering it all round and put it down to 30psi on all 4. This has cured some of the issues, it no longer sways around over 50mph but I've noticed other problems.
It doesn't have that mega bite from a dry start that it used to have - even in Sport+ if I give it full beans it feels like its bogging down a lot. But not all the time, sometimes its blistering, other times it feels like the torque is being throttled - the PS4 never did this!!!
But worse of all, if I'm in Sport and giving it absolute full chat, say going up a motorway slip road and onto the motorway, any slight steering angle and the traction light is constantly flickering - not just a bit, but constant and it carries on even when I've lifted off and am slowing down. I just had a blast then and with very slight steering angle at something just over 70mph ( ) it was spongy at the rear and I could see the TC light flashing again, this is in 6th or 7th gear flat out (no cars around).
I honestly don't know what's happened. I've lost confidence in the car now and it feels much worse to drive. But in the current climate I can't really chuck £300 at another front set of tyres.
So, can tyres be faulty and is it worth contacting Michelin to look into it? It's really annoying me now and putting me off driving the thing. I don't really want ATS messing with it again, they buggered up my wheels as it was.
Or is there anything else it could be, wheel sensor, tpms or something else.
I've had plenty of tyre issues on my 240 since buying. When I changed the rears from stock MPSS to PS4 the car was dangerous, as per the thread I made about it. It was weaving around at the back over 50mph and it was difficult to control the car.
So I bit the bullet and ditched the front MPSS with 4mm of tread left and put some more PS4 on. This fixed the issue thank god. The car was then perfect for 11k miles on the PS4 - a joy to drive, very very quick off the line wet or dry and even with just 2mm tread left on the rears the grip was unreal.
However, those rear PS4 wore out recently so I had brand new PS5 fitted instead of PS4. So I currently have new PS5 R and 18 month old PS4 front with 4-5mm tread.
And once again I've had nothing but issues. On the motorway, going over 50mph it was again swaying badly so I thought the pressure may be wrong - they were all over thanks to ATS so I put them to my usual 32F/36R setting and tested them - it was still not right.
So I tried more in the rears and put it to 34F and 40R PSI and it was unbelievably dangerous - the car was literally moving at the rear as if it had 4WS and as I hit 50 it was swaying around - I honestly thought it was going to spin!!
So I tried lowering it all round and put it down to 30psi on all 4. This has cured some of the issues, it no longer sways around over 50mph but I've noticed other problems.
It doesn't have that mega bite from a dry start that it used to have - even in Sport+ if I give it full beans it feels like its bogging down a lot. But not all the time, sometimes its blistering, other times it feels like the torque is being throttled - the PS4 never did this!!!
But worse of all, if I'm in Sport and giving it absolute full chat, say going up a motorway slip road and onto the motorway, any slight steering angle and the traction light is constantly flickering - not just a bit, but constant and it carries on even when I've lifted off and am slowing down. I just had a blast then and with very slight steering angle at something just over 70mph ( ) it was spongy at the rear and I could see the TC light flashing again, this is in 6th or 7th gear flat out (no cars around).
I honestly don't know what's happened. I've lost confidence in the car now and it feels much worse to drive. But in the current climate I can't really chuck £300 at another front set of tyres.
So, can tyres be faulty and is it worth contacting Michelin to look into it? It's really annoying me now and putting me off driving the thing. I don't really want ATS messing with it again, they buggered up my wheels as it was.
Or is there anything else it could be, wheel sensor, tpms or something else.