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lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 3315

Warped brake discs

So l have had the symptoms of warped brake discs for ages, pulsating brake pedal when slowing from higher speeds and a similar feel to the vehicle as it slows down.

My question is, which brake discs are most likely to have warped. l've got a spare front set and was hoping it was the front! They seem easy enough to change unlike my old Defender where you have to remove the wheel hub and bearings.

15th Aug 2025 4:07pm

LandyMax

Member Since: 10 Jan 2024
Location: Worcester
Posts: 18

I had the same symptoms on my first Defender and Disco 5, in both instances new front brake discs resolved the issue.

15th Aug 2025 4:25pm

keith

Member Since: 15 Aug 2012
Location: Edinburgh
Posts: 2274

I also have had the brake pedal pulse back and was told that the discs were prone to warping. Replaced the calipers with new stainless pistons and that fixed the problem. I did have a thought that the pulsing may have been a stuck piston and it was.

15th Aug 2025 5:06pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 3315

Okay thanks l will change the front discs and check the calipers at the same time.

Then if the fault remains, at least l will know what it isn't.

15th Aug 2025 5:48pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 3315

l replaced the discs this afternoon and the fault seems to have disappeared so it must have been the front.

A bit of advice if you plan to change the discs/pads

The two bolts holding the caliper are very tight and you'll need an 18" breaker bar to get them off. The small allen head bolt holding the disc on is made of cheese and if you try to use an allen key on it, the head will strip.

What you need to do is centre punch the edge and tap it loose. Then you can use an allen key on it.

The brake caliper is very heavy and it goes without saying that you must not let it hang on the flexible brake hose. l used a bungee cord to hold it out of the way. Have it ready for when you take the bolts out.

16th Aug 2025 7:54pm

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