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

Engine Control

Engine control
Engine control module Bosch ME 7.8
Ignition DME, individual spark coils, knock control
Firing order 1-6-2-4-3-5
Spark plugs Bosch FR 6 LOC
Beru 14 - FR 6 LDU
Electrode gap°1.6±0.2 mm (0.06±0.008inch)
E-gas Electronic throttle actuator control via DME ME 7.8
USA version On-Board Diagnosis II
Boost pressure control Absolute pressure-guided turbocharger control