Technical Service Bulletin 120613 — 2012 BMW Z4
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 120613 |
| Manufacturer | |
| Vehicle | 2012 BMW Z4 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
The Service Engine Soon Lamp On with Post Oxygen Sensor Faults Stored. The Service Engine Soon (MIL) lamp is on and the following faults are stored in the DME fault code memory. BN2000 (E-Series) vehicles: * 2D22: Oxygen sensor downstream of catalytic converter, electric: open circuit BN2020 (F-Series) vehicles: * 12AB04: Oxygen sensor downstream of catalytic converter, electric: open circuit * 12AC04: Oxygen sensor downstream of catalytic converter 2, electric: open circuit These faults may occur sporadically after a long MSA engine stop. Unfavorable DME software diagnostics (fault is erroneous) This software error affects vehicles produced from 3/2013 to 6/2013, as well as older vehicles which have been programmed during service work to a current integration level of Xxxx-13-03-5xx.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.