# Service bulletin 121210

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: 10162418
- Published by NHTSA: 2019\-07\-10
- Manufacturer's number: 121210
- Manufacturer's date: 2019\-07\-09
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING

## NHTSA's summary

"Engine Idle Speed Dips Too Low While Braking at Lower Vehicle Speeds. The engine speed may drop too low when slowing to a stop, braking at low road speeds, or while parking the car. This occurs intermittently, but can be more apparent when the automatic transmission selector lever is in the ""Sport mode"" position. Unfavorable DME software application"

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162418-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162418-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 2009 to 2011 BMW Z4

## Other bulletins for the same vehicles and component

- [SIB\-24\-02\-15](/bulletins/10058551.md), 2015-10-07, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION. BMW: ON TRANSMISSION SIDE, IN SOME VEHICLES, THE TRANSMISSION FLUID IS LEAKING AROUND THE AREA OF THE OIL COOLER LINES CAUSING UNFAVORABLE COOLING LINE CONNECTION TOLERANCES TO DAMAGE O RINGS. MODEL E84 \(X1\), E89 \(Z4\), F22 \& 23 \(2 SERIES\), F30 \& 31 \(3 SERIES\), F32 \& 33 \(4 SERIES\), F34 \(GRAN TURISMO\), F36 \(GRAN COUPE\). \*PE
- [SIB\-23\-01\-08](/bulletins/10040045.md), 2011-08-15, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. BMW: A NEW TECHNICAL SUPPORT PROCESS HAS BEEN CREATED REGARDING TRANSMISSION CONCERNS. \*RM
- [SIB\-28\-02\-10](/bulletins/10037922.md), 2011-06-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE. BMW: DOUBLE CLUTCH TRANSMISSION IS ENTERRING EMERGENCY MODE AND SOME GEARS CAN'T BE SELECTED. THIS IS A SOFTWARE PROBLEM. \*RM
- [SIB\-24\-02\-10](/bulletins/10037071.md), 2011-05-03, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. THE TRANSMISSION WARNING LIGHT IS ON AND THE VEHICLE WILL NOT MOVE FORWARD OR BACKWARDS. ENGINE SPEED ONLY INCREASES WHILE IN NEUTRAL OR PARK. \*RM UPDATED ON 5/1/2012. \*KB
- [SIB\-28\-01\-10](/bulletins/10037069.md), 2011-05-03, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION. BMW: THERE IS A SOFTWARE PROBLEM WITH THE DUAL CLUTCH TRANSMISSION MODULE. DATA CAN'T BE READ FROM THE MODULE'S MEMORY. \*RM UPDATED 8/10/11. \*PE

JSON: [/v1/bulletins/10162418](/v1/bulletins/10162418)

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