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Renault Zoe - Rear brake discs - timl_

I've got a Zoe with around 25,000miles at under 2 years old. I heard a rubbing noise from the back brakes so took it into the dealer for them to have a look. They have diagnosed that both rear discs need replacing due to severe corrosion and scoring and quoted £480 for the work. They told me that it would not be covered under warranty as it's normal wear and tear and to be expected for a vehicle of that age(!). It looks to me as if the caliper may have seized?

Does that sound reasonable?

Image of the disc: imgur.com/a/cDoDlni

Edited by timl_ on 02/11/2022 at 09:23

Renault Zoe - Rear brake discs - Cris_on_the_gas

Would agree with the garage that this is a wear item, although seems a bit harsh considering the age

Can't seem to find cost of 2 new discs and pads. Plenty of suppliers seem to list front disc and pads coming in at about £100. Assume price for rear is about the same then £380 for the labour seems a bit steep.

As this is an electric car don't suppose the rear brakes get much action with re-gen braking. Might explain the calliper seizing. A good mechanic should be able to free this up without any parts being used.

Was price from Renault dealer? if so most likely a lot cheaper if you can find a good local garage

Renault Zoe - Rear brake discs - timl_

Would agree with the garage that this is a wear item, although seems a bit harsh considering the age

Can't seem to find cost of 2 new discs and pads. Plenty of suppliers seem to list front disc and pads coming in at about £100. Assume price for rear is about the same then £380 for the labour seems a bit steep.

As this is an electric car don't suppose the rear brakes get much action with re-gen braking. Might explain the calliper seizing. A good mechanic should be able to free this up without any parts being used.

Was price from Renault dealer? if so most likely a lot cheaper if you can find a good local garage

I asked my local garage who I normally use. They said that unfortunately the rears are only available direct from Renault and they quoted them £95 per disc(!). With labour the total quote was £380.

Renault Zoe - Rear brake discs - Andrew-T

As this is an electric car don't suppose the rear brakes get much action with re-gen braking. Might explain the calliper seizing.

I thought this had long been a common problem for cars with rear disc brakes, if the driver is habitually a gentle braker. So probably even more likely if the car has regenerative braking. Try using the brake pedal more positively - if you can.

Renault Zoe - Rear brake discs - Adampr

Let's just say that doesn't look right to me.

Renault Zoe - Rear brake discs - timl_

Let's just say that doesn't look right to me.

I raised it with Renault and they said they could only go on what the garage said - wear and tear, to be expected and they were unable to contribute anything to the cost of repairs. One of my neighbours has a Zoe of the same age and very similar mileage and the rears are in perfect condition. I pointed this out and they told me "it depends on environmental conditions so no two cars are comparable".

Renault Zoe - Rear brake discs - Adampr

It kind of depends on how much of a fuss you want to make. It's obviously not 'normal wear and tear', it's a caliper sticking. If the car has been serviced in line with the manufacturer's recommendations either the caliper is faulty, the service schedule is wrong or the person doing the service didn't bother lubricating the caliper.

There is absolutely no way a brake disc would look like that after 25,000 miles and two years under normal use with no faults.

Renault Zoe - Rear brake discs - Cris_on_the_gas

the person doing the service didn't bother lubricating the caliper.

There is absolutely no way a brake disc would look like that after 25,000 miles and two years under normal use with no faults.

Callipers not lubricated at service. They don't even remove the road wheel. At best a quick spray of brake cleaner in the general direction of the calliper.

Edited by Cris_on_the_gas on 02/11/2022 at 14:53

Renault Zoe - Rear brake discs - bathtub tom

Callipers not lubricated at service. They don't even remove the road wheel. At best a quick spray of brake cleaner in the general direction of the calliper.

Which is likely to dissolve any lubricant.

Renault Zoe - Rear brake discs - Adampr

the person doing the service didn't bother lubricating the caliper.

There is absolutely no way a brake disc would look like that after 25,000 miles and two years under normal use with no faults.

Callipers not lubricated at service. They don't even remove the road wheel. At best a quick spray of brake cleaner in the general direction of the calliper.

But that's kind of my point. If the calipers are likely to seize due to reduced use in an EV, the service should include lubrication of the calipers. Either the calipers or the service are not fit for purpose.

Every time Renault say you can save money on servicing an EV surely the argument is that you can't because you need to buy new brakes every 2 years

Renault Zoe - Rear brake discs - Brit_in_Germany

If the Zoe is driven by someone in a hypermiling style, the rear brakes will hardly ever be applied, leading to corrosion build up on the disc surface (cast iron). If the car is driven in B mode, once in a while put it in D and apply the brakes more firmly more often.

Renault Zoe - Rear brake discs - gordonbennet

I wouldn't expect to see flaking rust like that in 2 years unless the car lived in Scotland and the owner never bothered to rinse the excessive road salt used there off the undersides, paying particular attention to the brakes, now and again...note wherever you live in the UK you should at the very least give the undersides and brakes a good wash down (mains pressure is perfectly fine) around April when all the salt has gone.

The cost of the parts isn't even amusing, its scandalous.

If i was looking at this i'd be removing one of those discs and pads making imprints and taking accurate measurements, because i'd wager there is an alternative fitment priced in accordance with the vehicle size and type.

Very few garages service brakes correctly, and judging by the condition of that one i'd suggest proper servicing should be an annual event...by service i mean remove pads clean and inspect everything and most important exercise the pistons in their bores before lubing everything up with the correct brake grease and reassembling, i wouldn't bother with the main dealer for this instead find a handy indy who knows what he's doing and takes a bit of care and pride in his work.

Renault Zoe - Rear brake discs - Xileno

What makes the rear discs special that they can only be obtained from the dealer? I had a look on ECP and they only list the fronts for the Zoe. There must be other cars that use these discs surely.

Renault Zoe - Rear brake discs - Bolt

What makes the rear discs special that they can only be obtained from the dealer? I had a look on ECP and they only list the fronts for the Zoe. There must be other cars that use these discs surely.

What surprises me is why the backs don`t get much use as the regenerative braking only slows the car, afaia the pads stop the car which is why they last longer (assuming that photo is the real thing?) ie not taken off another car?

iirc there is R&D going on that a motor completely stops a car using the Motor, but uncertain if its in use yet, the brakes stop the car not the motor

that disc certainly looks older than 2 years or as GB said it looks like it must have been in a salty place or the metal is of very poor quality and really cannot see the calliper being the problem around 2 years old even with low usage imo...

Renault Zoe - Rear brake discs - badbusdriver

I asked my local garage who I normally use. They said that unfortunately the rears are only available direct from Renault and they quoted them £95 per disc(!). With labour the total quote was £380.

Mintex rear discs (just over £50 for the pair) and pads (just over £40 for the set) for the Zoe are listed on Ebay;

204103855459

354299653200

Renault Zoe - Rear brake discs - Cris_on_the_gas

Mintex rear discs (just over £50 for the pair) and pads (just over £40 for the set) for the Zoe are listed on Ebay;

204103855459

354299653200

Discs are just over £50 each, so 2 would be £100. With the pads about £140 for the parts. Seems to be some confusion with the OP stating the total price at either £380 or £480. If £380 then labour cost of just over £200 to free up the calliper seems about main dealer pricing.

Renault Zoe - Rear brake discs - Xileno

The heading in the advert states 'pair' but then below it states each. I read that as two discs for £50.

Renault Zoe - Rear brake discs - Cris_on_the_gas

I put it in the basket and the price was £100 for 2

Renault Zoe - Rear brake discs - badbusdriver

I agree there seems to be some confusion in the description over what you are paying for, but £100 for the pair is not far off half the price from Renault. So still a significant and worthwhile saving. Also, not like it is some obscure brand, Mintex has been around for a very long time!.

Also calls into question why the OP's local garage is saying rear discs and pads can only be got from Renault?.

Edited by badbusdriver on 04/11/2022 at 17:27

Renault Zoe - Rear brake discs - gordonbennet

Well found BBD, OP owes you a virtual dram or two.

Even if its too late for the OP providing the link to his indy, then you've done a favour for many owners to the tune of £250/300 saving if they can fit the parts themselves.

The indy hasn't got time to go searching around ebay for parts, if his local factor say OE only then chances are he's going to take their word for it.

Edited by gordonbennet on 04/11/2022 at 19:05

Renault Zoe - Rear brake discs - Chris M

And the indy will be on the hook if the 'genuine' Mintex turn out to be fake and also the hassle returning them if they are incorrect.

Renault Zoe - Rear brake discs - Bolt

And the indy will be on the hook if the 'genuine' Mintex turn out to be fake and also the hassle returning them if they are incorrect.

Mintex web site should give specifications of pads and discs if OP knew the specs for his car. Garage must know this anyway

Though there are a lot of fakes around but wrappings usualy give that away

Renault Zoe - Rear brake discs - badbusdriver

And the indy will be on the hook if the 'genuine' Mintex turn out to be fake and also the hassle returning them if they are incorrect.

Mintex web site should give specifications of pads and discs if OP knew the specs for his car. Garage must know this anyway

Though there are a lot of fakes around but wrappings usualy give that away

I did wonder about the possibility of the discs and pads listed on Ebay as being fake.

Couple of things first though. 1, only the more powerful (136bhp) Zoe uses rear discs, the lower powered versions use drums/shoes on the back. 2, Mintex definitely do rear discs and pads for the Zoe, they are listed on their own online catalogue (as are the drums and shoes for the lower powered models). So regardless of anything else, you can get discs and pads for the Zoe from somewhere other than Renault themselves!.

Re the Ebay seller specifically, the part numbers listed are the same as those in the Mintex online catalogue. Plus, going to the sellers online shop reveals a 99.9% rating over 233k sales. So personally, I'd be happy enough to buy from them.

I put it in the basket and the price was £100 for 2

Looked at this again. The listing definitely states it to be a pair, so while the price (confusingly) says £51.83 each, I would assume this to be for each pair. It would then follow that if you put two in the basket, that would give you the price for two pairs, or four discs.

Renault Zoe - Rear brake discs - Chris M

First off, I'm not suggesting the eBay items are fake. Quite possibly genuine, but there's an awful lot of fake everything on there.

"Though there are a lot of fakes around but wrappings usualy give that away". But unless you have the original and fake side by side you are unlikely to know.

Indy will likely phone up his regular factor and ask for rear discs and pads for a Zoe reg. AB12 CDE. Factor says, not listed in our (not Mintex) book, have to go to Renault John.

Renault Zoe - Rear brake discs - John F

Does that sound reasonable?

Image of the disc: imgur.com/a/cDoDlni

No, it jolly well doesn't. Rear discs should almost last the life of the car. (The rear ones on my 16yr old 73,000 mile Audi A8 show little sign of wear, as do the front ones on my 42yr old 72,000 mile TR7). I would give them a good honing with a carborundum wheel to get rid of the ridgesand superficial rust.

Renault Zoe - Rear brake discs - Bolt

Does that sound reasonable?

Image of the disc: imgur.com/a/cDoDlni

No, it jolly well doesn't. Rear discs should almost last the life of the car. (The rear ones on my 16yr old 73,000 mile Audi A8 show little sign of wear, as do the front ones on my 42yr old 72,000 mile TR7). I would give them a good honing with a carborundum wheel to get rid of the ridgesand superficial rust.

Problem can be if the discs are allowed to get too thin they don`t dissipate the heat quickly enough to prevent brake fade, and not many last the life of the car unless they are not used much.

leaving a disc like that on imo is asking for trouble especially taking more metal off it as well!

Renault Zoe - Rear brake discs - skidpan

I had my first car with rear discs in 1986.

A number of those cars have topped 100,000 miles.

None have needed new rear discs.

2 have needed new rear pads, one through normal wear, one because the sliding pins on one side were sticking and caused uneven wear.

Front discs have historically lasted until the 2nd pad change. Front pad changes have been anywhere between 35,000 and 65,000 miles.

Last time I bought discs and pads the discs (vented) were the cheaper item. They were Pagid brand.

Edited by skidpan on 08/11/2022 at 08:40

Renault Zoe - Rear brake discs - bathtub tom
Problem can be if the discs are allowed to get too thin they don`t dissipate the heat quickly enough to prevent brake fade

I would have thought the opposite is true. Thinner disc=lower mass=quicker heat loss. Not thay I'd advocate wearing discs too thin. There should be adequate information available on minimum thickness.

Renault Zoe - Rear brake discs - Andrew-T
Problem can be if the discs are allowed to get too thin they don`t dissipate the heat quickly enough to prevent brake fade

I would have thought the opposite is true. Thinner disc=lower mass=quicker heat loss. Not thay I'd advocate wearing discs too thin. There should be adequate information available on minimum thickness.

I suppose as vented discs wear thinner that might be true. With solid ones I'm not so sure - imagine the limit situation where a disk is only 2mm thick, I suspect a thicker disc might transfer heat elsewhere faster ?