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...Technical Information Exhaust gas recirculation system(EGR) General To achieve exhaust emission reductions, some vehicles, are fitted with an exhaust gas recirculation system. This system is controlled by the ECU and the EGR valve. Function Due to the recirculation of a part of...

...Technical Information Lambda sensor General Due to the increasing strictness of exhaust emission regulations, the vehicle manufacturers are committed to reducing their vehicle emissions. For this reason a 3-way catalytic converter is fitted to nearly all vehicles. To achieve a good conv...

...Technical Information Bulb paint cracks and flakes On vehicles with orange direction indicator lamps the paint cracks and flakes When vehicles fitted with this type of bulb display white or very different light output, the cause can be that the orange paint has star ted to c...

...Mercedes-Benz Sprinter Air -conditioning system without condenser fan On some of the above -mentioned vehicles the use of a condenser fan has been omitted. The following pressure conditions are caused by this, particularly at high outside temperatures, but accept the followin...

...Ford Fiesta, Ka, Puma built from January to February 2000 Unexpected illumination of the brake fluid warning light If the brake fluid warning light illuminates unexpectedly when the brake discs, brake pads and brake shoes are in good condition, the problem could be a leaking thre...

...Audi 80 7/89 – 6/96 Engine: NG Audi 90 7/89 – 6/92 Engine: NG Audi 100 7/85 – 6/91 Engine: NF Knock sensor failure on the 2.3 Ltr. 5 cylinder engine On the above -mentioned engine types a failure of the knock sensor can occur. This is often noticeable by an i...

...Technical Information Evaporation loss - and re - circulation system / absorption canister General In a parked vehicle, fuel evaporates via the tank vent line into the environment. To avoid this pollution, vehicles with a controlled fuel mixture system, have an evaporation lo...

...Technical Information Secondary air injection system (SAI) General To achieve a further reduction of the exhaust emission during the cold start and warm up, some vehicles have an additional secondary air system fitted. This system reduces the CO and HC emissions....

...VW Golf ´98 TDi flickering headlight After the cold starting the headlights dim and brighten frequently Cause: At engine temperatures 20° C the glow plugs are addition -ally switched on up to 2500 rpm. The emissions and diesel knock are reduced through this operatio...

...VW Golf/Bora/Passat ´98. Noises from the Instrument panel Creak noises in the area from the fuse box cover and the dashboard. Cause: Some of the above listed vehicles, experience this noise in the area of the main fuse panel in the dashboard. Th is noise is caused by the rubb...



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