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...THROTTLE VALVE 7.03703.38.0/39.0 DIFFERENCE: VACUUM CONNECTION The two throttle valves 7.03703.38.0 and 7.03703.39.0 are identical technically. The throttle valve 7.03703.38.0 also has a vacuum connection. Competitors and vehicle manufacturers (OE) only offer the version with vacuum...

...THROTTLE VALVES AND REGULATING THROTTLESWHAT IS THE DIFFERENCE?In a petrol engine, the throttle valve impacts the quantity of air that is drawn in. More or less fresh air or air-fuel mixture flows into the cylinder according to how open the valve is. The position of the throttle valve dire...

...EGR FAULT DUE TO FOREIGN BODIES FROM THE EXHAUST TRACT POTENTIAL COMPLAINTS: • Irregular engine running • Loss of power • Jerking • Diagnostic trouble code P1444, P16786 Foreign bodies from the catalytic converter area can be sucked through the lines of the exhaust gas...

...OBD and Fuel Supply...

...Many of our customer enquiries are related to the technical data for our fuel pumps for small series or special applications. The following selection of pumps for universal use is intended as a decision-making aid for finding the suitable pump for the relevant requirements. These pumps ar...

...VALVESINSTALLATION AND ADJUSTMENT ERRORS Incorrect valve clearance settings Cause: The valve clearance has been set too tight or the maintenance intervals have been exceeded. Consequence: The value no longer closes properly. Combustion gases �ow past the valve seat and heat up t...

...PISTONSOUR HEART BEATS FOR YOUR ENGINE.www.ms-motorservice.com © MS Motorservice International GmbH – 50 003 974-02 – EN – 02/15 (082019)PISTON CROWN DAMAGESeizure due to overheating (mainly piston crown) •Overheating due to combustion defaults • Bent/blocked oil injection je...

...PISTON RINGSwww.ms-motorservice.com © MS Motorservice International GmbH – 50 003 928-02 – EN – 02/15 (102019)You can receive more professional knowledge, direct from the experts, from your local Motorservice partner and on: www.ms-motorservice.com/techINCORRECT RECONDITIONINGPis...

...Function of the Secondary Air System The secondary air system supplies ambient air to the exhaust when the engine first starts up, until the engine is warm enough for the oxygen sensor to take control over the combustion mixture A "rich mixture", i.e. a mixture with excess fuel, i...

...IN THE EVENT OF PROBLEMS WITH FUEL PUMPS: CHECK CONTACT In the event of problems in the fuel system, the system pressure and volumetric flow of the fuel pump should be measured first.If the measured values do not match the manufacturer's specifications, it is sometimes the case that the...



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