As title suggest, does any forum member experience the same? I have an e36 and e46 in the family and both cars exhibit the same tyre wear. I googled and found a US site that tells the opposite story. I would expect if unequal tyre wear is a symptom of unequal lateral weight distribution then shouldn't the driver side be wearing out faster? Your thoughts and comments is greatly appreciated.
Left rear tyre wearing faster than right rear
- Thread starter jon2367
- Start date
maybe that causes the wear
detach8
Well-Known Member
Re: Left rear tyre wearing faster than right rear
if i am not wrong, as we know the car is balanced for 50:50 weight distribution. in the US they put more weight on the right side to offset the drivers' weight on the left. i'm not sure if they shifted the weight to the left side for our right hand drives. from what I see, the battery is on the drivers' side so i don't think the weight shifted.
where's the fuel tank, just curious. i don't know the internals of the car that well really. the weight of the fuel tank might matter.
and of course we tend to drive faster around a right turn than a left since the left turn is usually tight or requires a slow down (filter lane). i'm just guessing though.
if i am not wrong, as we know the car is balanced for 50:50 weight distribution. in the US they put more weight on the right side to offset the drivers' weight on the left. i'm not sure if they shifted the weight to the left side for our right hand drives. from what I see, the battery is on the drivers' side so i don't think the weight shifted.
where's the fuel tank, just curious. i don't know the internals of the car that well really. the weight of the fuel tank might matter.
and of course we tend to drive faster around a right turn than a left since the left turn is usually tight or requires a slow down (filter lane). i'm just guessing though.
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Re: Left rear tyre wearing faster than right rear
I've checked the tyres again and it seems that left side tyres show more wear than the right ones. Even the fronts. Additionally, the left rear tyre thread depth are like so (in decending order): outer, inner, middle. This indicates over-inflation of the left rear, but its the same pressure as the right. What I can surmise from this is the right tyre pressure is just right for the additional load caused by the driver & battery in boot. I'll reduce the left tyre pressure by about 2 psi and see if this gives some relief in the long run. I don't think that 2 psi will cause any safety issues, but then I'm no expert.
I rush up the multistory carpark every morning. My wife parks in the open. Besides multistory carparks are tight right turns, where the inner wheel will be scrabbling for traction so I'd expect the driver side tyre to show more wear.Racebred;576123 said:
I've checked the tyres again and it seems that left side tyres show more wear than the right ones. Even the fronts. Additionally, the left rear tyre thread depth are like so (in decending order): outer, inner, middle. This indicates over-inflation of the left rear, but its the same pressure as the right. What I can surmise from this is the right tyre pressure is just right for the additional load caused by the driver & battery in boot. I'll reduce the left tyre pressure by about 2 psi and see if this gives some relief in the long run. I don't think that 2 psi will cause any safety issues, but then I'm no expert.
detach8
Well-Known Member
Re: Left rear tyre wearing faster than right rear
there's a differential on the rear so during turns the wheels shouldn't be 'scrabbling for traction'.
in any case it seems you have some over-inflation. but that shouldn't worry you -- just get your tyres rotated (that's what the rotation is for duh)
i usually pump 10 kpa more than what is recommended (now its 220 kpa rear, 200 kpa front) since i dont check my tyres at every gas stop over. usually once every 2 months and the pressure would have run slightly below the recommended.
there's a differential on the rear so during turns the wheels shouldn't be 'scrabbling for traction'.
in any case it seems you have some over-inflation. but that shouldn't worry you -- just get your tyres rotated (that's what the rotation is for duh)
i usually pump 10 kpa more than what is recommended (now its 220 kpa rear, 200 kpa front) since i dont check my tyres at every gas stop over. usually once every 2 months and the pressure would have run slightly below the recommended.
Re: Left rear tyre wearing faster than right rear
Hi Detach8. I'm running directionals and so the only rotation I can do is between front and back. Not much help there. I find your tyre pressures a bit low for the much heavier e90. That translates to 29psi front and 32psi rear. My e36 has bent 2 rims before in a run-in with a pothole while running factory pressures of 27/31. Now I'm doing 29/32 (same as yours) and hope I don't meet anymore potholes. The e46 has much higher factory pressures (30/34).
detach8;576177 said:
Hi Detach8. I'm running directionals and so the only rotation I can do is between front and back. Not much help there. I find your tyre pressures a bit low for the much heavier e90. That translates to 29psi front and 32psi rear. My e36 has bent 2 rims before in a run-in with a pothole while running factory pressures of 27/31. Now I'm doing 29/32 (same as yours) and hope I don't meet anymore potholes. The e46 has much higher factory pressures (30/34).
detach8
Well-Known Member
Re: Left rear tyre wearing faster than right rear
hi bro thanks for the tips. i'm just following what's on the label on the side of the driver. i did try to pump 1-2psi more but the ride gets abit more noisy and uncomfortable.
i'll go to hurry tomorrow to get my rims checked and maybe also use the opportunity to up the tyre pressure to try again.
jon2367;576828 said:
hi bro thanks for the tips. i'm just following what's on the label on the side of the driver. i did try to pump 1-2psi more but the ride gets abit more noisy and uncomfortable.
i'll go to hurry tomorrow to get my rims checked and maybe also use the opportunity to up the tyre pressure to try again.
