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4)

Functional check of the climate system:

5)

Check for DTC's

In case of functional problems (see step 4) or DTC's (see step 5), recalibrate the system and repeat step 4 and 5. If the problem persists, continue with
normal fault tracing.

Important note

A small number of earlier cars (MY04.5 and MY05) may also have been upgraded to the MY06 software as the faulty MY06 CCM software was
available as a CCM upgrade/reload in VIDA/VADIS from 06/24 to 07/18. Cars that were upgraded/reloaded during that period must be upgraded
again to replace the faulty MY06 CCM software.

Warranty Claim Information

Relays and Modules > Relays and Modules - HVAC > Control Module HVAC > Component Information > Technical Service Bulletins > Customer Interest: > TNN87-50 > Aug > 05 > A/C - Blows Hot Air From One or Both Sides > Page 866

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