Winter/summer Tire Changeover Mixing 18" And 19" Rim's

[NickDeRoo]

Is there any software configuration needed when switching from 19" rim's to 18" rims?
I have a SR+ M3 with 19" rim's and I'm looking into a set of rim's for winter tires. If i get 18" aero and switch these over myself if the car going to freak out about traction control? what about mile calculation/ride hight? any other considerations?

 

[Castlerock]

It will ask you when it senses new TPMS, I believe it even asked what diameter the new wheels were (I think). The car came with the 19's, I bought 18's for winter.

 

[NickDeRoo]

thanks for the info CastleRock! Did you buy 18's from tesla shop? if not where'd you get the TPMS?

 

[Tony_YYZ]

Yeah, once the new TPMS sensors register it will prompt you to select whether you've installed 18", 19" or 20" wheels.

 

[Castlerock]

thanks for the info CastleRock! Did you buy 18's from tesla shop? if not where'd you get the TPMS?

I bought the 18's from a Floridian on the forum and had them shipped. I bought the TPMS through Amazon and had them programmed by a forum member For Sale: Programming Service for Autel TPMS Sensors - $25
It all worked out just fine.

 

[mswlogo]

I bought the 18's from a Floridian on the forum and had them shipped. I bought the TPMS through Amazon and had them programmed by a forum member For Sale: Programming Service for Autel TPMS Sensors - $25
It all worked out just fine.

Just to be clear. Universal TPMS need programming. 433 MHz TPMS do not (like ones from tire rack). I had 2 sets from tire rack and they came right up.

 

[SomeJoe7777]

Just to be clear. Universal TPMS need programming. 433 MHz TPMS do not (like ones from tire rack). I had 2 sets from tire rack and they came right up.

All TPMS other than OEM need programming. Tire Rack programmed yours before they shipped them to you.

 

[mswlogo]

All TPMS other than OEM need programming. Tire Rack programmed yours before they shipped them to you.

TireRack sells exactly the same Continental TPMS Tesla uses. They are one frequency. There is nothing to program.

I’ve bought TPMS on eBay, Amazon etc. for other cars. None ever had to be programmed.

But I never buy the universal ones.

Read #1 and #2 at this link. In short most don't need programming.

Sorting Through TPMS Sensors: Programmable? Pre-loaded? Here Are Your Choices - Retail - Modern Tire Dealer

 

[SomeJoe7777]

TireRack sells exactly the same Continental TPMS Tesla uses. They are one frequency. There is nothing to program.

I’ve bought TPMS on eBay, Amazon etc. for other cars. None ever had to be programmed.

But I never buy the universal ones.

The frequency is just one of the many items that need to match between the sensor in the wheel and the receiver in the vehicle. Also required to match are the modulation, protocol, and ID information. Buying a TPMS sensor that is the same frequency that your car uses is no guarantee that it will work.

Tesla uses Continental's receivers in the majority of their vehicles on the road. 433MHz Continental sensors will work without modification because they are essentially OEM -- they already match everything. This is what Tire Rack sent you. They're also quite a bit higher in price than many programmable sensors.

If you're buying a sensor that is for a specific model car, that generally means you're buying an OEM sensor and thus it is already set up to work with the receivers in that vehicle. But again, availability and price can be an issue.

Many programmable sensors are available that will work with nearly every vehicle on the road, and can be half the price of many OEM sensors.