Thread: Brake shudder and bendix pads?(

Originally Posted by Tombie

Do NOT fit poly in the lower arms.

As I commented years ago, they would result in metal fatigue, it is now becoming a reality.

Just need to look on the UK forms to see how they break, their corrosion issues don't help either.

Yeah I'll end up with genuine again. They lasted by far the longest in my car. Same as brakes and a few other parts. I guess the get it right sometimes

Originally Posted by Tombie

Do NOT fit poly in the lower arms.
As I commented years ago, they would result in metal fatigue, it is now becoming a reality.

I have been wondering about this too. Where are the failures starting to show up? UK forums?
Perhaps worsened by corroding arm mounts over there?

Scott

Originally Posted by LRD414

I have been wondering about this too. Where are the failures starting to show up? UK forums?
Perhaps worsened by corroding arm mounts over there?

Scott

UK forums, I shared some direct to Justin Cooper a month or two ago.

The failure is outright metal fatigue. The failure points are outright tearing through the steel housing.

The arms move through quite a range of motion, something firmer bushes can’t accommodate. If you’ve ever paid attention whilst someone lowers the vehicle you will see it move significantly(hint for players, to extend life, lower vehicle whilst rolling to a stop; don’t static lower as it tensions the bushes more).

One of the key features of these vehicles is NVH attenuation. The bushes do this very well and allow the correct range of movement. Removing this serviceable component defies the benefit and design.

After replacing my set (first set lasted 70k of serious work) it was stunning how much difference and how much smoother the ride became.

Originally Posted by Tombie

..... failure is outright metal fatigue.
The failure points are outright tearing through the steel housing.
The arms move through quite a range of motion, something firmer bushes can’t accommodate.
If you’ve ever paid attention whilst someone lowers the vehicle you will see it move significantly .....

Yeah I think it's a sleeper issue. People get poly bushes fitted and then claim "no issues" but they've only been on for a few weeks or months .....

Scott

Poly is deginitely a no go, even in the sway bars. I put a set of superpro poly in the front and rear sway bars, thought it was all good, but ended swapping them back to oem rubber middle of this year.

I guess its the same with the LCAs. First set was done at 120k, with OEM arms and bushes, been all good since.

Originally Posted by Eric SDV6SE

In my (not so good) experience with bendix pads (and im assuming you've gone for the hd 4wd type as these are the only ones bendix sell that fit the D4)
They are a high metal pad that dont wear evenly and chew out rotors faster than a box full of mice in a cheese factory. I went through a set of DBA rotors abd bendix 4wd pads in 60,000km when the oem rotors and ferodo pads did well over 140,000km and even then the pads were ok but the rotors were under min thickness. I'm now running RBA slotted and dimpled rotors with TRW ceramic pads and these are wearing very well.

I steer clear of bendix in this application.

Hi Eric, saw your post re Bendix pads and the disc wear. I have a set of Bendix HD pads, (not the 4WD pads) and decided not to use them when I fitted the new front rotors (Delios) so bought some Delphi pads instead. The Delphi pads are a real disappointment, so much so I am taking them out, the dust makes the OE standard pads look dust free, they are truly appalling, which I could actually live with if the braking performance was good, but this also is a problem. I find there is very poor feel and cold effectiveness and much higher brake pedal pressure required to get it to respond than the OE pads. So, I was wondering about your thoughts on the TRW ceramic pads as far as feel and effectiveness and as an aside, how much dust. How long have they been in the car (km)

Thanks

Peter

Hi Peter,

No issues so far, about 5000km on the current setup. TRW a bit dusty but great for towing good bite and feel front and rear. Im happy with them - way better than the Bendix pads.

Pm sent as well