Service bulletin 122-K7S2R-05
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10117416 |
| Published by NHTSA | 2017-09-14 |
| Manufacturer's number | 122-K7S2R-05 |
| Manufacturer's date | 2015-05-27 |
| NHTSA component | POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); ELECTRICAL SYSTEM:SOFTWARE |
NHTSA's summary
Concerns: Control unit for all-wheel drive system Porsche Traction Management (PTM) Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. The affected vehicles were fitted with a control unit for the all-wheel drive system in which a purging routine for the hydraulic pump drive for the multiplate clutch is not activated due to an error in the control unit software. This can cause wear particles to clog up the hydraulic pump drive over the service life of the vehicle, resulting in higher power consumption for the pump drive. As a result, the all-wheel drive system will be deactivated and the warning message "No all-wheel sys. " Only rear-wh drive" Adapted driving permitted" will be displayed in the instrument cluster.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Transmission and driveline, Software, Transfer case
| PORSCHE 911 TARGA 4 | 2014, 2015 (the catalog's model; the bulletin names a series or trim of it) |
|---|
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