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

Display Groups 70-79 (Reducing Emissions)




Readiness code

- Engine running at idle
- Coolant Temperature at least 60 °C
- Control module in mode 04, basic setting

Indicated on display


Read Measuring Value Block 70 ->


Display Group 70:






Readiness code

- Vehicle standing, engine running at increased idle
- Intake Air Temperature (IAT) maximum 75 °C
- Control module in mode 04, basic setting

Indicated on display


Read Measuring Value Block 71 ->







Readiness code

- Vehicle standing, engine running at increased idle
- Intake Air Temperature (IAT) maximum 75 °C
- Control module in mode 04, basic setting

Indicated on display


Read Measuring Value Block 77 ->


Display Group 77: