Power Steering Pump (Pump In Upper Area), Remove and Install

Power steering pump is not serviceable. If malfunction in pump is suspected, determine cause using pressure and leak tests; if malfunctioning replace complete unit

NOTE:
^ Pumps supplied as replacement parts are not filled with oil. Fill pump with hydraulic oil Part No. G 002 000 and rotate by hand, otherwise pump may be damaged or noisy during operation.
^ Type of oil: hydraulic oil Part No. G 002 000
^ Oil system capacity: 0. 7 - 0. 9 ltr. (11. 815.2 oz.).

Removing





- Remove noise insulation.





- Loosen belt pulley hex bolt.
Counter-hold with a hex key if necessary.





- Turn tightening device in direction of arrow to relieve tension on ribbed belt.
For ease of illustration, relieving belt pulley tension is shown with out charge air line.
- Mark ribbed belt direction of rotation.
- Remove ribbed belt.
- Remove hex bolt from belt pulley.

Suction line and hose, removing
Suction line lower spring clip can only be opened with headlight removed.
Remove bumper for this.
- Pull connector off intake line.
- Open spring clamps -1-, -2- and -3- with special tool VAS 5024.





- Remove suction hose -A- and suction line.





- Clamp off suction hose with hose clamps 3094.
- Open spring clip -3- and pull off suction hose with special tool VAS 5024.





- Clamp off return hose with hose clamps 3094.
- Remove banjo bolt -2-.
- Seal pressure line/hose with a plastic bag or similar.





- Remove hex bolts -1- and -2-.
- Remove pump.

Installing
- Fill power steering pump with hydraulic oil, via suction union.
- Turn hub by hand until oil comes from pressure side.
- Install power steering pump on bracket and tighten bolts to 25 Nm (18 ft. lbs.).





- Install suction hose and spring clip.
^ (Arrow A) must align with casting seam -arrow-.
^ Spring clip must close off mark -arrow B-.
- Install new O-rings on banjo bolt.
- Tighten banjo bolt to 30 Nm (22 ft. lbs.).
Continue installation in reverse sequence