Wheels/Tires - All Wheel Drive Vehicle (AWD) Vibrations
Technical JournalTITLE:
Vibrations in All Wheel Drive (AWD) vehicle
CAR MARKET:
United States
ISSUING DEPARTMENT:
Technical Service
REF NO:
TJ 27227
ISSUE DATE:
YEAR
2013
MONTH
01
DAY
07
PARTNER:
3 US 7510 Volvo Cars North America
FUNC DESC:
Generated in Batch
FUNC GROUP:
2185
"Fixed Right - First Time"
Attachment
Vehicle Type
CSC Customer Symptom Codes
DTC Diagnostic Trouble Codes
Text
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
DESCRIPTION:
When driving at a constant speed with small throttle angle, a vibration or jerk may occur at different speeds and in different gears.
This might be due to the tires.
If the tires are from different brands, have different tire wear or with different rolling circumference, the Differential Electronic Module (DEM) interprets this as a spare wheel on the vehicle and tries to compensate to get the wheel speed correct on all four wheels.
SERVICE:
Check for applicable software (SW) for DEM and Transmission Control Module (TCM), and if found download according to VIDA.
If you still have vibrations, remove the fuse to the DEM and see if the vibrations are gone.
If they are, check wheels for brand and that they are marked exactly the same on all four wheels.
If you have the same brand and same size/ specification/ markings on the tires, the easiest way to check height differences is to check the tread depth or the circumference of the tires.
If it is more than 3mm difference in height, test drive the car with a set of wheels from a good car.
VSTG OPERATION NUMBER:
If it is determined that tires are the root cause for the symptom due to different brands, different tire wear, or different rolling circumference, then the diagnosis and repair of this is not covered under warranty.
36004-2: Software control module downloading -See VSTG
98452-2: Fuse (DEM) remove-install test drive and control tire acc to. TJ27227 - 0.3 hrs
98453-3: Wheels remove-install and measurement acc to. TJ27227 - 0.5 hrs
98454-3: Test drive and restore acc to. TJ27227 - 0.8 hrs
- Claims may be submitted under the new car warranty when there is a documented customer complaint using claim type: 01
- Labor times are valid at the time of release and are subject to change.