Brake upgrade.

g8jka

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I'm already on 300mm discs and was considering going up to 325mm but not sure it's worth it as I said further back in this thread. Best put my thinking cap on.

Tony.
Yes sorry Tony, my reply was in relation to this post in case you were looking to sell and anyone wanted to know if it is an easy upgrade :thumbsup:


UPDATE,
Set of stainless braided hoses ordered, not too sure about calliper and disc size upgrade.

Would the brakes I'm removing make a sensible upgrade to anyone with a 2.0, 2.2 Z3 or even a 2.98? The discs are in very good condition (no juddering) the pads were only new in Feb. this year and the callipers were stripped to bare metal and painted (blue). This would help me go the bigger size route if I can offset some of the expense.
The discs currently on my car are 300mm. dia.

Tony.
 

Grumps

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These arrived today, more on the blue theme @Grumpy ! No way I'll be getting these done at work anytime soon as a man off for 3 weeks paternity leave from today!:(
View attachment 45151
Patience is a virtue so they say. Hmmmf!!

Tony.
Patience indeed Tony. Erm what are they! :confused:
 

t-tony

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t-tony

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While I had the N/S front wheel off yesterday afternoon I had a look at fitting the front braided hoses, looks like a job for next Saturday afternoon if all goes well. I've acquired a pressure brake/clutch bleeder so easy to bleed after fitting the hoses.
Following some good advice from a couple of members I'm going to stick with the standard 300mm front and 294mm rear discs, upgrading them to drilled and grooved MTec parts and some upgraded pads to complete the brake upgrade.
Not changing the front callipers will free up a bit of money to allow me to do all the brakes at once, and as my everyday car that's probably the best way to go.

Tony.

ps. I also discovered that since I lowered my car I have to run the wheels onto a piece of 2" timber to allow my trolley jack under the jacking point, even after removing the cup from the trolley jack!
 

Antm72

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20161102_125757.jpg

Mine bedded well after 200 miles braking is good on Mintex pads i imagine a higher grade pad would make a difference never really spent lots on pads so don't know the benifit but there must be some.
It has to be the pad as the disc is designed to cool better so less fade.
The pad therefore must be the issue ..:sorry:
 

Bozzy

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I've moved all the posts about Bozzy's brakes to his original thread to keep this thread a bit more focused.
Oh thank Christ,thought i was cracking up when I noticed the thread title had changed :wacky:.

Steve
 

peteslag

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This is a bit of a late reply but thought it worth mentioning my experience. I think your decision to not go bigger could be wise. I have a 2004 Z4 3.0 SE with standard size discs and callipers. It has performance pads, 5.1 fluid, newish OEM spec pagid discs and the callipers are in good order. With this set up I've never experienced any brake fade and the brakes always felt plenty strong. This includes a full day of track action at Cadwell Park. The standard Braking system on this car seems more than up to the job, so long as the fluid and callipers are in good order. Performance pads also make a lot of difference.
 

t-tony

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Cheers for that Pete, good info mate.

Tony.
 

t-tony

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A disappointing afternoon in the office, front hoses fitted only. More to add later.

Tony.
 
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Jack Ratt

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Same here, was going to fit my new discs but for some reason my arse has been welded to the sofa all day
 

Bozzy

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A disappointing afternoon in the office, front hoses fitted only. More to add later.

Tony.
Oh this sounds like it will be interesting,I'm guessing the hoses aren't a straight swap ?.

Steve
 

Bozzy

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Same here, was going to fit my new discs but for some reason my arse has been welded to the sofa all day
Don't blame you Gary it's a bit cold outside for working on cars mate brrrr.

Steve
 

t-tony

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Lovely and warm once you get going, its the getting going which is the hard part. Didn't even need the heater today.

Tony.
 

Jack Ratt

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Don't blame you Gary it's a bit cold outside for working on cars mate brrrr.

Steve
I've got a garage, but think I've had the f***ems today
 

t-tony

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I mainly suffer that in the evenings Garry, gets harder to motivate myself after tea as I get older to be honest.

Tony.
 

Jack Ratt

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I know what you mean especially with these dark nights
 

Bozzy

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I mainly suffer that in the evenings Garry, gets harder to motivate myself after tea as I get older to be honest.

Tony.
I'm like that after my first cuppa in the morning :whistle:.

Steve
 

t-tony

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So, here goes, the new set of hoses,
020.jpg

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,
022.jpg

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.
018.jpg
019.jpg
021.jpg


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.
023.jpg

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).
024.jpg

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.
025.jpg
027.jpg
028.jpg

The old hoses on their way to the bin.
029.jpg

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.
030.jpg
031.jpg

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.
033.jpg
035.jpg
036.jpg

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.
038.jpg

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.
 
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