Quote:
Originally Posted by Stromy  It did provide the sequence of events to remove the pump. However it does not inform you of certain basic items, such as how to remove the belt or that the idler tension pully must be removed to access one of the pumps torx bolts. It does not tell you that the idler tension pulley has a tamper proof torx head fitting to remove the belt. Leave it to MB to not want to allow you to change your own belt. Discouraged after a trip to find a tamper proof T50 torx bit, I went ahead and removed the resevoir. |
I did replace my PS pump myself yesterday. You do NOT have to remove any of the pulleys to undo any of the torx.
Here is how it is done after the reservoir is removed (1x8mm bolt):
1. Locate the port on the right side of the pump, undo the 17mm nut and release the copper hose first.
2. PS pump itself is held by 4 x 10mm torx bots, two on the front and two on the back. Two on the back can be undone easily with a ratchet (socket wrench) and 10mm socket, ideally torx but normal will work just fine.
3. One front bolt is located under the belt (lift it slightly to gain access) and the last one behind the next pulley to the left of pump (painted red in the picture attached). Use 17mm spanner with the pulley's centre nut to move this pulley as far to the left as you could to get access to the last bolt (you will also need to do so when you're fitting the new pump and when you put the tension belt back).
4. Re-attach and re-fasten all hoses back to pump and reservoir, fill up with power steering fluid and push the air out of the system as 43sqd advised.
You're done.
