Coding needed for wheel / tire change?
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Contributors
Joined: Jul 2007
Posts: 1,100
Likes: 1
From: Saint Louis, Missouri, USA
My Ride: 2010 535i M Sport 6MT
Model Year: 2010
I was looking at upsizing my wheels from 18" to 19":
245/40R18, 60.0 mph
to:
245/35R19 front, 59.9 mph
275/30R19 rear, 60.5 mph (BMW-recommended, available for my preferred tire model)
The better match for the rear seems to be:
285/30R19 rear, 59.9 mph (not available for my preferred tire model)
For proper operation of the vehicle functions: speedometer, DSC, ABS, ASC, Corner Brake Control, Dynamic Brake Control, Brake Fade Compensation, Brake Standby, Brake Drying, etc, is it critical to go with BMW specified front and rear wheel / tire sizes and code the vehicle with the correct / compatible wheel types?
Vehicle coding options include wheel types: All BMW Options
Is the wheel coding for the vehicle a functional technical parameter, or a non-functional inventory label?
245/40R18, 60.0 mph
to:
245/35R19 front, 59.9 mph
275/30R19 rear, 60.5 mph (BMW-recommended, available for my preferred tire model)
The better match for the rear seems to be:
285/30R19 rear, 59.9 mph (not available for my preferred tire model)
For proper operation of the vehicle functions: speedometer, DSC, ABS, ASC, Corner Brake Control, Dynamic Brake Control, Brake Fade Compensation, Brake Standby, Brake Drying, etc, is it critical to go with BMW specified front and rear wheel / tire sizes and code the vehicle with the correct / compatible wheel types?
Vehicle coding options include wheel types: All BMW Options
Is the wheel coding for the vehicle a functional technical parameter, or a non-functional inventory label?
"The 5 Series brake system is supported by the comprehensive functions of Dynamic Stability Control (DSC). These include antilock braking (ABS), Automatic Stability Control (ASC), Cornering Brake Control and Dynamic Brake Control; each of these functions contributes to vehicle stability and some of them do so specifically during braking. Other braking enhancements via DSC include Brake Fade Compensation, which compensates for loss of braking power (fading) under hard or repeated brake use; Brake Standby, which snugs the brake pads up to the rotors upon sharp deceleration to reduce inherent lag time in brake application; and Brake Drying, which brings the pads to the rotors periodically during wet-weather driving to keep the brakes ready."
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Joined: Nov 2010
Posts: 247
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From: New Jersey / Toronto
My Ride: Sapphire Black 07 530i non-sport
7000k Angel Eyes
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Nitto Invo tires 285x30 R20 - 245x35 R20
Discounttire.com
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http://vacmotorsports.com/
wish list:
Rieger Front bumper
Hamann side skirts
Custom quad exhaust
Rpi Ram air intake scoop
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KW Variant 3 suspension
Brembo Big Brake kit
LCI Heads
Tints
BMW M5
I was looking at upsizing my wheels from 18" to 19":
245/40R18, 60.0 mph
to:
245/35R19 front, 59.9 mph
275/30R19 rear, 60.5 mph (BMW-recommended, available for my preferred tire model)
The better match for the rear seems to be:
285/30R19 rear, 59.9 mph (not available for my preferred tire model)
For proper operation of the vehicle functions: speedometer, DSC, ABS, ASC, Corner Brake Control, Dynamic Brake Control, Brake Fade Compensation, Brake Standby, Brake Drying, etc, is it critical to go with BMW specified front and rear wheel / tire sizes and code the vehicle with the correct / compatible wheel types?
Vehicle coding options include wheel types: All BMW Options
Is the wheel coding for the vehicle a functional technical parameter, or a non-functional inventory label?
245/40R18, 60.0 mph
to:
245/35R19 front, 59.9 mph
275/30R19 rear, 60.5 mph (BMW-recommended, available for my preferred tire model)
The better match for the rear seems to be:
285/30R19 rear, 59.9 mph (not available for my preferred tire model)
For proper operation of the vehicle functions: speedometer, DSC, ABS, ASC, Corner Brake Control, Dynamic Brake Control, Brake Fade Compensation, Brake Standby, Brake Drying, etc, is it critical to go with BMW specified front and rear wheel / tire sizes and code the vehicle with the correct / compatible wheel types?
Vehicle coding options include wheel types: All BMW Options
Is the wheel coding for the vehicle a functional technical parameter, or a non-functional inventory label?
Contributors
Joined: Dec 2007
Posts: 5,972
Likes: 0
From: The State of Southern NJ!
Yes, it is mandatory at the time of installation and when iDrive reports tire wear too. OH ... very very important ... only BMW air should be used to inflate the tires 
Seriously, where did you find that information?
I suppose if the rolling radius of installed wheels was changed drastically I suppose it might be possible to code and correct' the speedometer so that it reports your speed more accurately.
Seriously, where did you find that information?
I suppose if the rolling radius of installed wheels was changed drastically I suppose it might be possible to code and correct' the speedometer so that it reports your speed more accurately.
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