# Service bulletin SI\-B12\-22\-08

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: 10029304
- Published by NHTSA: 2009\-07\-06
- Manufacturer's number: SI\-B12\-22\-08
- Manufacturer's date: 2009\-04\-01
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

## NHTSA's summary

BMW: AS ORIGINALLY INSTALLED, THE DME PROGRAMMING MAY CAUSE THE OBD DIAGNOSTIC TO ERRONEOUSLY EVALUATE THE EFFICIENCY OF THE CATALYTIC CONVERTERS. MODEL E46 \(M3\) COUPE AND CONVERTIBLES. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine, Exhaust and emissions, Catalytic converter

## Vehicles listed

- BMW M3
- 2001 to 2005 BMW M3

## Other bulletins for the same vehicles and component

- [SI\-B12\-22\-08](/bulletins/10032574.md), 2010-04-14, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. BMW: VOLUNTARY EMISSIONS RECALL 08E\-A03; M3 S54\-DME REPROGRAMMING FOR CATALYST CONVERSION DIAGNOSIS. THE DME PROGRAMMING, AS ORIGINALLY INSTALLED, MAY CAUSE THE OBD DIAGNOSTIC TO ERRONEOUSLY EVALUATE THE EFFICIENCY OF THE CATALYTIC CONVERTERS. \*PE

JSON: [/v1/bulletins/10029304](/v1/bulletins/10029304)

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