Tire dry rot - no visible cracking but poor traction.

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So my much loved '11 E350 has been totaled after an accident I had a few weeks back. Only took about $10k in damage for it to be declared a total loss (gotta love that horrific MB depreciation), no airbag deployment. No injuries at all the car held up extremely well considering.

Anyhow I picked up a Certified Pre-Owned post-fix dieselgate '12 Jetta Sportwagen TDI for a song. 2 yr/unlimited bumper to bumper as a VW Certified car and the extended warranty emissions that will carry me through January 2023. The extended emissions warranty basically covers the entire long block engine assembly, fuel delivery system from tank to injector, exhaust system emissions equipment, turbo, and basically anything that would cause a CEL (except DSG trans related codes). It was an absolute no-brainer for how cheap the lightly used examples are going for.

Anyhow I wrongly thought the tires on the car were new as they have a solid 9/32's tread remaining at all 4 corners and there was no visible sidewall cracking or browning. Yeah they had tire shine on them but even after that has worn off they still look new. These are Michelin Pilot Sport AS/3, these start at 11/32's after some research so these are definitely not new tires and apparently were installed not too terribly long before the car was turned into VW to go sit idle for ~1.5 years probably somewhere here in the southeast (car was bought, regularly serviced and turned in at the dealer I bought it from - they did tell me it did not sit on their lot after turn in).

Traction is awful, wet conditions it takes no effort at all to get the tires spinning. Yeah the TDI puts out a ton of torque but the amount of wheel spin even at light throttle pressure is ridiculous. I have come to terms I may need new tires, but wanted to see if there is a possibility after a bit of wear (I have only done ~150 miles since I bought it) there might be some decent rubber once I get some more miles on it? Not trying to be a cheapskate but I hate to throw away tires with 9/32's of tread remaining.

Thanks in advance!
 
I just bought a Mercury Sable with older Big O Euro Tires on it that have real good tread but wasn't driven much. Tires installed in 2010 and need replaced. Hate throwing on tires right after buying a car. There is visible dry cracking and rubber feels hard. Know I should replace it but just hoping to rejuvenate the rubber somehow.
 
What's the date code on the tires? You can Google it if you need help finding it. If they're 4-5 years old, and the car has been sitting, I would replace them. Maybe the AS/2's just aren't very good with wet traction?
 
Front wheel drive and TDI torque ... the car squats and takes weight off the front wheels, right as the TDI engine torques up. I have driven numerous TDI's , and chirping the tires was just normal ... !
 
Similar situation on the G37 I recently bought, the tread depth was lower, but still decent, and the tires weren't that old based on the date code, but had just awful traction, even at low speeds (they never hydroplaned at high speeds, which suggests to me that the tread depth was adequate). Anyway, after getting the car sideways on an onramp a couple of times, and peeling out when there was a cop behind me and I was trying to take off slowly from a stop, I ordered a new set of highly rated Coopers for the car. No issues, since.
 
I have had similar experience with Michelins. In my case on a 99 Mercury Tracer. We have several vehicles, so maybe 5 to 8 thousand miles a year. It got to where I had plenty of tread, OK wet traction, but very poor dry traction like in a panic stop. I am beginning to wonder about paying extra money for high mileage tires if they don't get much mileage and loose dry traction. Maybe I will get a set of cheaper Korean or Chinese ones or high performance sticky ones since they will wear out at about the same time the Michelins begin to loose dry traction.

I just wore out a pair of Kumho's that came w/my Fiesta at about 50,000 miles, thats the same mileage the Michelins begin to loose dry traction.
 
If your not confident with their traction.... a set of tires is cheap compared to an accident.
I went through the same thing twice in the past year, on our low mileage 2005 Buick and our also low mileage 2007 Honda. No cracks that I could see, but just didn't feel confident driving on them.
 
Originally Posted by geeman789
Front wheel drive and TDI torque ... the car squats and takes weight off the front wheels, right as the TDI engine torques up. I have driven numerous TDI's , and chirping the tires was just normal ... !


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True true! I really don't want to be that person doing a burnout at a stoplight in a Jetta wagon. It really is a torque monster and it really is an on off switch when the turbo finally spools.

Going to look at the date code today - I think them just sitting idle for almost 2 years probably killed them so I suppose its probably time to just toss them despite the respectable tread. Fortunately they are not a crazy size so replacing with another set of the same they are only ~$140/tire. The Pilot Sport AS/3 have very good reviews so I think these are just hardened from sitting but not dry rotted.
 
I would have checked manufacturing date.
If they are no more than 10 years old I would suspect it is the torque and all seasons and not the age of the tires.

AS/3 are not known for poor traction but age kills all the tires.

I hope dealer did not use the tire shine on the tread.

KrzyÅ›
 
I'd check the date code. I kinda doubt they are truly seven years old, but one never knows. I believe Capri has said that tires need to be used on a regular basis, to keep the oils inside the rubber moving around, so it's possible that they have just aged out, despite not being "aged".

I'd drive it a bit, do some hard braking too. If they still feel like junk after a few hundred miles, time to move on. Not that unheard of to buy a car and then quickly change out tires for what the owner wants/needs. Maybe it's time for those fancy rims you always wanted.
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It's been too long since I had a TDi but I recall liking the Nokian entyres I had. I didn't like the RT43's I put on (work great on a Camry, Jetta not so much).
 
I test drove that vehicle back in 2009 and encountered wheel spin with factory tires as well. The AS3's are a HP All-Season tire so are you going to buy summer tires?
 
I test drove that vehicle back in 2009 and encountered wheel spin with factory tires. The AS3's are a HP All-Season tire but Michellin has upgraded to the A/S 3+ I have them on my 435i and no problems.
 
So I looked at date code today - 10th week of 2015 so they are just a few weeks over 4 years old. Going to run a few hundred more miles on them and see how they do before I toss them.

It really could be the TDI torque going through the front wheels, torque peaks at 235 lb/ft at 1750 RPM. Too bad they didn't make any in 4Motion guise.
 
I've driven a 13' Beetle TDI a lot of miles. While it's pretty peppy and does good for power, it's no burnout monster at all. The turbo lag helps with that as by the time it spoils up you're already moving.

But it also had nice Pirellis on it.
 
All the tires I have tried so far ,have excellent grip for about a year , good grip on the second year ,and by the third year they are much worse ,spinning easily and braking enables abs pretty easily on bad tarmac (pretty common in city roads in my country).No problems whatsoever on the highway (high or acceptable quality tarmac) even with old tires because they soften from the friction and elevated temperature.
Bad tarmac and low tread temperature is where a fresh set of tires make all the difference.
 
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