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Car Forum / Volvo Cars / September 2004Bulge in Tyre: V40
My 2002 V40 has a small bulge in the outer wall of a rear tyre - probably from hitting a kerb. (The alloy wheel is scuffed - can this be polished out?). I presume it is not safe and must be replaced. My front tyres (now done 20,000 miles) are close to the end of their life. Can I put them on the back for a few months more and buy good new ones now for the front? Or is it 4 new tyres at one go? > My 2002 V40 has a small bulge in the outer wall of a rear tyre - probably > from hitting a kerb. (The alloy wheel is scuffed - can this be polished > out?). I presume it is not safe and must be replaced. My front tyres (now > done 20,000 miles) are close to the end of their life. Can I put them on > the back for a few months more and buy good new ones now for the front? > Or is it 4 new tyres at one go? Since you asked, here are my recommendations: 1. After you read this message go outside and swap the bulged wheel/tire with the spare. Safety is #1 and that will make your car safer. If it blows out while driving you will have more problems and expenses than a simple tire replacement. 2. Go to a tyre place you know and like and have them move the front tyres to the rear and buy new tires for the front. Have them spin balance all four tyres. 3. Since the wheel is scraped the damage to the tyre is most likely driver-related and not a manufacturing defect, so asking for a free replacement is probably not going to be approved, unless specifically spelled out in the tyre warranty. If, however, you bought a tyre warranty then see if it covers driver-caused damage. Sometimes it does, sometime it does not. Happy driving. >> My 2002 V40 has a small bulge in the outer wall of a rear tyre - >> probably from hitting a kerb. (The alloy wheel is scuffed - can this [quoted text clipped - 22 lines] > > Happy driving. Thank you - that was pretty much my plan. I don't think 2 1/2 year old tyres are still under warranty - and I've never heard of buying a tyre warranty here in the UK. >My 2002 V40 has a small bulge in the outer wall of a rear tyre - >probably from hitting a kerb. (The alloy wheel is scuffed - can this be >polished out?). I presume it is not safe and must be replaced. My front >tyres (now done 20,000 miles) are close to the end of their life. Can I >put them on the back for a few months more and buy good new ones now for >the front? Or is it 4 new tyres at one go? Why do you want the best tyres on the front? The best tyres should be at the back (as per the Volvo manual). Under heavy wet braking the rear becomes light and is more prone to aquaplaning - and hence a spin.  SignatureTim Hobbs '58 Series 2 88" aka "Stig" '77 101FC Ambulance aka "Burrt" '03 Volvo V70 My Landies? http://www.seriesii.co.uk Barcoding? http://www.bartec-systems.com Tony Luckwill web archive at http://www.luckwill.com Tim The V40 id FWD and about 80% of braking effort comes from the front wheels so why would Volvo recommend having ropey tyres on the front, surely the fronts would have given up their adhesion is well worn long before the rears break away under acquaplaining conditions? Andy >>My 2002 V40 has a small bulge in the outer wall of a rear tyre - >>probably from hitting a kerb. (The alloy wheel is scuffed - can this be [quoted text clipped - 7 lines] > rear becomes light and is more prone to aquaplaning - and hence a > spin. Michelin Tire has done some extensive testing about this, and they concluded that the best tires should be at the rear as well. They tested a 1/2 worn pair of tires and a new set. They found that when the worn pair was on the front you may start to feel understeer come on faster in wet weather, but the situation was controlable... With the good tires up front they put the car into a turn and the rear end abruptly broke free and the car spun around - without any early warning. Under heavy braking you are pressing even more weight then normal onto the front wheels - this added pressure alone should reduce front hydroplane... Plus I think Michelin, and Volvo would know a little better then you or I - they have millions of dollars to do R&D on their products, they must know how they work best. -BTW I got the Michelin test article from a recent auto magazine.... either Car and Driver or Road & Track (forget which one, might be on one of their websites tho). > Tim > [quoted text clipped - 16 lines] >> rear becomes light and is more prone to aquaplaning - and hence a >> spin. > ... (The alloy wheel is scuffed - can this be >polished out?). Alloy wheels can be refinished to look like new. There are shops that do this. If you can't find any, go to a good body shop, they know where to go. |
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