So, here goes, the new set of hoses,
Got the car jacked up and front wheels off ready to fit the hoses, instructions say to check they're the correct length and fittings before removing the old hoses. ONE glaring omission which I will add,
Before you do anything make sure you can open the bleed screw or you could be up s*** creek without a paddle.
Anyway having laid the new hose alongside the old one it was the same length and had the same unions so having put the pedal bar in place I released the pressure from the bleed screw and set about removing the old hose.
Having screwed the union into the calliper and tightened it I placed the rubber support in it's mount on the strut body. When I push the union into the hole in the bracket on the inner wing, to my dismay it went straight through the hole as shown.
BUGGER! What to do now, I found a packet of zinc plated flat washers in a drawer, so using a stepped drill bit I opened them out to allow the union to be a snug fit. (I made 5 more of these for the other hoses - more on that later).
Anyway this allowed me to continue fitting the front hoses and when done they looked like this, I also had the reshape the securing clips from the male brake pipe unions to keep the joint mounted securely.
The old hoses on their way to the bin.
Both front brakes bled up, checked for leaks and wheels re-fitted. Car turned round, now for the 4 rear hoses, yeah .........................
The rear end has a flexible hose from the body to the rear suspension arm, and a short steel brake pipe which connects to a short hose from the calliper, but unlike the Z3, the Z4's steel link pipe is not separate and is crimped to the hose from the body to the suspension arm as a single item.
This steel section connects to the hose from the calliper at a bracket below the driveshaft, hard to picture this but here's a couple of pictures to try.
The only thing that makes sense to me is that you join both these rear hoses at the mounting point beneath the driveshaft and it would look like below.
I don't want to do this until I have contacted the seller and although I am pleased with the quality of these parts I'm more than a little disappointed that nowhere in the instructions does it mention any of this let alone the problem mounting the front hoses on the wings. It clearly states on the package that this set is for my car, so it should fit. Strangely they also include in the kit a small plastic bag containing 2 copper washers for a "Banjo" type fitting, but there are none on my car?
Tony.
ps. On the UP side having been out for a ride with just the front hoses changed there is a definite improvement in the firmness of the brake pedal so I'm very much looking forward to getting the rear ones fitted now.