Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Hand-Held Tester (HHT) Version Coding and Programming



All new spare parts combination control modules (N10-3) which are installed and connected to the vehicle electrical system must be programmed with the following data, using the Hand-Held-Tester.

Version coding
- (USA)/ECE
- (CH)

Coding accessories
- ATA
- Rain sensor

Important: The combination control module (N10-3) can be reprogrammed as many times as necessary.

CAUTION: Erasing the Combination Control Module (N10-3) DTC memory, will also erase the DTC memory for the Retractable Hardtop.