OK as some of you may already know, the E34 has a common fault with the bushes on the passenger side of the windscreen wiper linkage wearing and causing the wiper to come into contact with the bonnet when in operation causing wear to the bonnet and wiper arm.
I sourced a cheap replacment linkage on eBay got it for £30 delivered and took a chance that it would be Ok! They are nearly £400 from the dealer!
So I thought I would do a How-to on this as I knew before I started that it was gonna be a PITA!
First things first, remove the wiper arms from the spindles with a 13mm spanner
Then remove the scuttle panels, its simply a case of popping out all the plastic rivets with a flatblade screwdriver, however it is advisable to have a supply of spares as they can be brittle if old!
Next using a 27mm socket remove the large nut around each of the spindles
And remove the rubber gasket from around the entire engine bay
Pop open the covering that goes over the cables in the loom and remove the two small bolts from here using a 7mm socket
And remove the two plastic nuts under the cover here, using a 10 mm spanner or socket
This cover is held on by 8 small clips which can be pryed open with a screw driver, this will get it out of the way!
Unfortunately the rest cannot be removed due to the way the loom is fitted in to it, causing it to be a bit of a squeeze later!
There is another 7mm bolt at the bottom of the panel at either end
Then it can be removed!
Then you will find this plastic cover over the heater matrix, it is very flexible and can be manipulated out of its position!
Now you can see the plastic cowling for the heater matrix itself.