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

Trionic T7, 4-Cyl




To remove
1 Remove the engine cover.







2 Unplug the connector.
3 Undo the sensor with a 27 mm long socket.

To fit







1 Check the sealing washer and fit a new one if necessary.
Apply vaseline (part no.30 20 271) or equivalent to the sensor threads. Fit the sensor.

Tightening torque 17 Nm (12 lbf ft)

2 Spray the connector with Kontakt 61 (part no.30 04 520). Plug in the connector.
3 Fit the cover.