This chapter contains information on the following subjects:
→ Indicator lamp
→ Catalytic converter→ Diesel particulate filter
Additional information and warnings:

WARNING
Indicator lampRemoving and installing engine control unit -J623- (with metal locking
plate)
Special tools and workshop equipment
required
Hot air blower -VAS 1978/14A--1-
with nozzle -2- from wiring harness
repair set -VAS 1978 B-
Small grinder (commerci ...
Removing and installing gas discharge bulb control unit -J343-/-J344-
WARNING
Risk of death due to high voltage! Risk of injury
and environmental pollution!
Observe operation and safety notes for gas discharge
bulbs
→ Chapte ...
Detecting leaks
External damage can cause leaks in the refrigerant circuit. Because a small
leak will involve only small quantities of refrigerant, leaks should be checked
for using an electronic leak detector or by introducing a leak detection
additive to the refrigerant circuit. Electronic leak detectors ca ...