Program Control Units (Direct Ozone Reduction)
BMW technical service bulletin 122113 for 2012-2014 BMW 328I and 2014 BMW 428I.
- Bulletin number
- 122113
- Component
- Engine and engine cooling: exhaust system: emission control: catalytic convertor
- Summary
- Service Action: Program Control Units (Direct Ozone Reduction). The DME diagnostic for direct ozone reduction, by means of the environmental air catalyst sensor (EAC) located in the radiator, is not carried out correctly as required by emissions regulations.
Owners of these vehicles have filed 282 complaints in the engine category.
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