[URUS2020NC]

Anyone had any experience with "Transmission Malfunction" when putting aftermarket wheels on a Urus or any other model for that matter? Car drives completely fine and the dealer said it was because I have 23's vs. the stock 22's. That makes ZERO sense. They said it's fine to drive just ignore the error. The 23's only throw an error code after 2,000 miles and had a flat tire (run flats) and the car was driven very slowly for a mile. Any help or thoughts would be much appreciated. Again, car works fine but I despise error codes and my local dealer seems to be unable in correcting the error. It's a 2020 Urus under warranty only 2,3xx miles. The Vossen 23's tire specs are the same as the stock 23's just wider,. TPMS were calibrated, balanced etc.. and worked fine until the flat tire. Am I missing something or just being bs'd??

Thanks!

Erik

 

[NycLambo]

Definitely not "fine" if you're getting a transmission error on the dash (At All) and yes, yes, YES the mere 1" inch difference can make a drastic difference in these cars (including Ferrari's)

I can tell you that from experience. On a Gallardo, changing so much from 19" to 20" with the wrong tires and offset will have you with a worn clutch 50% faster than riding on stock rims..

You have to make sure it's the right off set but more important the right tires. Tires are everything when upgrading to aftermarket.

What exact rims & tires do you have. You can call RDBLA in los angeles and ask them for their opinion/help. They do 23" inch wheels on those cars all the time.

As for aftermarket rims, I don't put anything else on my cars but forgiato's.

 

[URUS2020NC]

Vossen 23 inch wheels, Continental Sport Contact 6 tires
Front: 295/35/23 (Stock 285/35/23)
Rear: 335/30/23 (Stock 325/30/23)
It took basically over 2K miles to produce an error, only after I had a flat tire. I barely drive about 100 miles a week...

 

[GDF]

It's not the offset, it's the correct rolling diameter. If the rolling diameter is too great, you will burn up your diff's and trans. Since you have a trans error, you might already have damage. I would put the stock rims back on, change the trans and diff fluids and hope for the best until you can get the proper set up on.

 

[toymr2trd]

I heard that early Urus models had this issue and it was something that needs to get programmed. RDBLA mentioned it as well on a video. The newer models it doesn't have this issue. However what GDF mentioned above is 100% accurate. My understanding is the tire size up front has to be pretty much in alignment w/ the tire in the rear. This goes with any lambo that is AWD. The RWD don't have this issue.

TJ Hunt made a video as well in regards to his lambo and why it has to have certain tire sizes to match and balance the rolling diameter.

 

[NycLambo]

It's not the offset, it's the correct rolling diameter.

What is that? Rolling diameter?

 

[GDF]

It is the overall height of the wheel/tire combo resulting in "x" amount of revolutions per mile per hour. If the height and revolutions are off be a certain degree, +/- 2-3%, you have too much of a difference and can destroy your differentials and transmission. This applies only to cars/trucks with AWD. There are online tire calculators available to know if you are within the correct ratio.

 

[NycLambo]

It is the overall height of the wheel/tire combo resulting in "x" amount of revolutions per mile per hour. If the height and revolutions are off be a certain degree, +/- 2-3%, you have too much of a difference and can destroy your differentials and transmission. This applies only to cars/trucks with AWD. There are online tire calculators available to know if you are within the correct ratio.

Dam thank you for that. Do you happen to know what exact tires go on a gallardo that will have 20 inch wheels?

 

[URUS2020NC]

It is the overall height of the wheel/tire combo resulting in "x" amount of revolutions per mile per hour. If the height and revolutions are off be a certain degree, +/- 2-3%, you have too much of a difference and can destroy your differentials and transmission. This applies only to cars/trucks with AWD. There are online tire calculators available to know if you are within the correct ratio.

@GDF my height of the tire is the same as the book says it's just the width, which I think would NOT effect the rolling diameter, but could be wrong.... My car did come with 22's with a higher height ratio for the side wall with the smaller wheel. Could they re-calibrate to a 23 stock even though the car came with 22's?

Front: 295/35/23 (Book says Stock 285/35/23)
Rear: 335/30/23 (Book says Stock 325/30/23)

 

[NycLambo]

@URUS2020NC perhaps it's not wheels? Perhaps it's the tranny itself?

 

[URUS2020NC]

@URUS2020NC perhaps it's not wheels? Perhaps it's the tranny itself?

 

[NycLambo]

Thanks @NycLambo I'm going to call an out of town dealer as well because my dealer can't seem to find any issues..or doesn't want to fix

if dealer can't find an issue maybe it's just some electrical bulIshit and nothing serious. Hope it is and nothing serious. Good luck.

 

[GDF]

The width directly corresponds to the height as the profile is a percentage of the width.

 

[URUS2020NC]

My local dealer cleared the code after I explained to them again today and no issues thus far. They said it's fine even on the transmission with the slightly wider tire, the run flat that was driven one a mile triggered the code. FYI ALL if you run on a run flat or even a spare it can throw the code, which is what I suspected. I will continue to monitor

 

[Tabelegratis]

My local dealer cleared the code after I explained to them again today and no issues thus far. They said it's fine even on the transmission with the slightly wider tire, the run flat that was driven one a mile triggered the code. FYI ALL if you run on a run flat or even a spare it can throw the code, which is what I suspected. I will continue to monitor
[/QUOTE

My local dealer cleared the code after I explained to them again today and no issues thus far. They said it's fine even on the transmission with the slightly wider tire, the run flat that was driven one a mile triggered the code. FYI ALL if you run on a run flat or even a spare it can throw the code, which is what I suspected. I will continue to monitor

I’m having the same issue. My dealer won’t reset the light and is telling me the wheels will cause transmission malfunction/failure. I do have 24” vs 23”. My rolling diameter is identical to my factory 22”. Please advice. Is potential transmission damage myth or fact?

 

[URUS2020NC]

I’m having the same issue. My dealer won’t reset the light and is telling me the wheels will cause transmission malfunction/failure. I do have 24” vs 23”. My rolling diameter is identical to my factory 22”. Please advice. Is potential transmission damage myth or fact?

I got rid of the Urus with the wheels, but honestly didn't have any mechanical issues just the light stayed on, I don't really think it causes stress on the car IMHO, I would try and get a 2nd opinion or be happy to send over my advisors contact info.

 

[SSIIICK]

I just reset mine with an OBD2 scanner anytime it comes on. It's Lamborghini just being annoying to try and prevent people from changing the wheels. I have a Novitec widebody kit on my Urus so had to upgrade the wheels for a proper fitment. Currently running 24s. Car drives absolutely perfect.