Removing High-Pressure Pump
WARNING: This page is about a different variant/trim than selected.
WARNING:
Highly inflammable or explosive materials
- Danger of fire or explosion
- → Avoid contact with hot parts or sources of ignition.
- → Use suction to remove ignitable vapours.
- → Attach warning sign in a clearly visible position.
- → Contain leaked media using non-flammable absorbent material and put it in a container designed for this purpose for disposal in accordance with local requirements.
- → Secure collection containers/vessels to prevent them from tipping over.
CAUTION:
Dirt on injection system components (intake manifold injection and direct fuel injection system)
- Material damage
- Rough-running engine
- Bad exhaust emissions
- → Thoroughly clean connection points and adjacent areas before loosening them. If the engine is very dirty, wash it before starting disassembly work.
- → Lay removed parts on a clean surface and cover them. Only use a clean, lint-free cloth.
- → Carefully cover components or seal them if repair work will not be carried out immediately. Place rubber caps on connections. Seal intake openings with film or adhesive tape.
- → Only install clean parts. Do not take spare parts out of the packaging until just before installation.
- → Never use compressed air when the system is open. Do not move the vehicle.
Information
- Always perform a leak test in the high-pressure area after opening the fuel system.
- This is particularly important if components are disassembled and replaced.
- Coat threaded connections and fuel line cones with Microgleit DF977S lubricant (Part No. 000.043.209.35).
- Allow components to dry off for at least 15 minutes!
- Unscrew fastening screws -1 - and move solenoid valve holder -2 - aside.
- Release and disconnect electric plug connection -3 -.
- Protect contacts on electric plug connection -3
- from emerging fuel and soiling.
- Unscrew fastening screw -1
- on low-pressure line holder -2
-.
- Loosen retaining clip -1 - on high-pressure line -2 -.
- Lift off anti-chafing element -3
- for low-pressure hose -4
- at the connection point for the high-pressure pump -5
-.
- Have suitable material ready to catch emerging fuel.
- Loosen spring band clamp -1 - using > VAS 6930 - spring band clamp pliers , pull low-pressure hose -2 - off the high-pressure pump -3 - and collect emerging fuel.
- Loosen union nut -4
- on high-pressure line -5
- and unscrew by hand. Collect emerging fuel.
- Unscrew fastening screws -1 - from the high-pressure pump -2 -.
- Press high-pressure pump -2
- down slightly, carefully screw it off anti-clockwise under the retaining lugs and remove it.