Squealing brakes

Technical Advice, Faults and How-To Information.
User avatar
RPSN
Posts: 1611
Joined: Sat Nov 16, 2019 2:09 am

Post by RPSN »

MajorTom wrote: Mon Sep 13, 2021 10:13 pm Hmm... my brakes have recently also occasionally squealed a bit and I was going to post a question about it.

I see that the bulletin says "NOTE: Normal Warranty procedures apply". So this would typically be covered by warranty? My car is just with the dealer to get a new O2 sensor and diff under warranty so if this is a warranty matter I might tell them to fix this too.

I assume your car has the 380mm rear discs? (optional on the R-Dynamic). If so, and the rear brakes are found to squeal, I would think the Technical Bulletin applies. This should be covered under warranty as your car is still within the warranty period.

However a Special Service Message (SSM) has since been issued on 21/09/2018 with the title ‘SSM74090 - X152 (F Type) 19 inch Rear Brake squeak / squeal’ (attached).

Taken from the SSM.....

Issue: A customer may present an F-Type with 19 inch wheels exhibiting rear brake squeak / squeal. Although the noise does not indicate a degradation in functionality or braking performance, it may lead to customer dissatisfaction, and unscheduled retailer visits for repair action.

Cause: Under investigation by JLR engineering.

Action: Please pass on the following information to any concerned customers:
1. The noise may not necessarily result in a degradation of friction material performance.
2. Discuss with them the scenario’s when the noise occurs – see questionnaire below, and complete the relevant sections of it with the customer if possible.
3. Advise the customer that you will raise an EPQR so that JLR Engineering can review the concern.

Although your car has 20 inch wheels, some of the information may still be relevant?

Being as your car is already with the dealer for a new O2 sensor and diff, it would be a good idea to mention the brake squeal, Technical Bulletin and SSM to them.
SSM74090 X152 (F Type) 19 inch Rear Brake squeak or squeal.pdf
(69.17 KiB) Downloaded 80 times
SSM74090 X152 (F Type) Images of 17 and 19 inch rear brake calipers.pdf
(42.35 KiB) Downloaded 74 times
2016MY V6S Coupe RWD Auto 380PS Supercharged
Rhodium Silver
Panoramic Glass Roof
Sports Seats (heated) in Jet Leather
Seat Memory Pack 2 (14x14 way)
Powered Tailgate (open & close)
Reverse Park Camera with Guidance
Front Parking Aid

User avatar
RPSN
Posts: 1611
Joined: Sat Nov 16, 2019 2:09 am

Post by RPSN »

Backofthenet wrote: Tue Sep 14, 2021 9:43 am
RPSN wrote: Mon Sep 13, 2021 1:09 pm Not sure if you’ve seen it but there’s a Jaguar Technical Bulletin (attached)......’Squeal Noise From Rear Brakes - 380mm Brake Discs’.

Taken from the bulletin......

Situation: A 'squeal' noise from the rear brakes may be evident at slow speed as the vehicle is coming to a stop.

Cause: This may be caused by noise generated from the contact points of the brake caliper and pads.

Action: Should a customer express this concern, follow the Service Instruction outlined below.

Basically, the pads are removed and grease is applied to various points at the rear of them, the caliper piston and caliper carrier.

Is this also relevant if you have Carbon Ceramics - I get a squeal at low speed occasionally and i have the CC Brakes

The Jaguar Technical Bulletin ‘JTB00389NAS1 - Squeal noise from rear brakes (380mm brake discs)’ does not apply to vehicles with Carbon Ceramic Brakes. However, you may find that some of the information is relevant?

On a separate note, if you have any discoloration of the Carbon Ceramic front brake calipers, there's a Jaguar Technical Bulletin JTB00363NAS1 that you may be interested in.

Taken from the Bulletin.......

AFFECTED VEHICLE RANGE:
F-TYPE (X152) Model Year: 2015 Onwards
VIN: K10868 Onwards
With: Carbon Ceramic Brakes

Situation: On vehicles fitted with the Carbon Ceramic Brake system, the yellow paint of the front brake calipers may be subject to discoloration at extremely high temperatures caused through closed road usage.

Action: Should a customer express concern, follow the Service Instruction outlined below.

NOTE: Discoloration of the brake caliper will not affect the performance of the brake system. F-TYPE vehicles fitted with Carbon Ceramic Brakes are factory-filled with Castrol SRF React Racing brake fluid and should be topped up as necessary using this fluid only. Refer to the Owner's Handbook for further details.

1. The yellow paint used on F-TYPE Carbon Ceramic Brakes front brake calipers may be subject to discoloration at extremely high temperatures. These temperatures will not be seen in normal road use unless there is a genuine fault with the caliper (such as 'seizing'). If there is a fault with a caliper, it is likely that only the left-hand or right-hand caliper will be discolored. In this case, you should submit a separate warranty claim.

2. NOTE: Jaguar Land Rover does not accept any warranty claims through closed road, track, and/or motorsport use.

Pantone #115 is the colour reference as to what is acceptable for the brake caliper paint finish. Anything darker than Pantone #115 means extremely high temperatures have been experienced, which is likely a result of closed road, track, and/or motorsport use.
JTB00363NAS1 F-Type (X152) Carbon Ceramic Brake Caliper Colour.pdf
(72.94 KiB) Downloaded 70 times
Last edited by RPSN on Wed Sep 15, 2021 10:56 am, edited 1 time in total.
2016MY V6S Coupe RWD Auto 380PS Supercharged
Rhodium Silver
Panoramic Glass Roof
Sports Seats (heated) in Jet Leather
Seat Memory Pack 2 (14x14 way)
Powered Tailgate (open & close)
Reverse Park Camera with Guidance
Front Parking Aid
User avatar
RPSN
Posts: 1611
Joined: Sat Nov 16, 2019 2:09 am

Post by RPSN »

Edinburgh75 wrote: Tue Sep 14, 2021 10:42 am I should have clarified the fuel part.

I bought the car in Edinburgh but live in Glasgow. When the noise started I had called the local main dealer who could not book the car in for 2 weeks so i called the supplying dealer to get their help. After a few promised call backs that didn't materialise, i called the 'hand over specialist' (only car dealers could create such a pointless role) and she managed to get the service manager to call me back. He said he would look over recalls and bulletins and call me back which he did and reported that nothing existed for the car. They then offered the chance to drive through to Edinburgh and wait while they investigated the car but that there were no courtesy cars so if there was a part needed, i would have to make my own way home. Obviously i said no and that they could find me something surely. I then had a call back saying Monday this week a driver would come through with an f type courtesy car and take mine away.

Car duly arrived with a call 30 mins before, so far so good. Nice older chap takes the car away. Receive a call back 2 hours later saying they can't hear anything and can i elaborate, despite me having a 20 min call the week before with the service manager giving as much detail as possible on the causes and situations where it happened (exactly as the bulleting describes actually).

I then get a random text 'Good morning, just a quick update your vehicle is moving into the workshop and i will update you shortly. Kind regards' at 12:18

Then nothing. Car is showing unlocked with windows down, doors and boot open on the app. I have a further tracker that shows it is inside the workshop, so far so good.

Then i get a call at 4pm from the same driver as this morning telling me he is half way to me.

Car arrives, driver doesn't know why I was not told and doesn't know what was done.

Call service dept., nobody available and manager gone home early. Original salesman on day off and hand over specialist off sick. I speak to sales manager who is rightfully embarrassed and promises a call back. its 10:40am as I write this and no news.

The fuel was promised to be replaced, not from me asking but their offer. A minor point but an additional ball drop that doesn't help their case.

So I have the car back, do i trust it has been properly fixed? I will know later today on the school run i suppose

At least you now have the car back with the brake squeal issue hopefully resolved (long term) and a promise of half a tank of fuel.

If you do manage to find out how the workshop fixed the issue, it would be interesting to know what they did and whether or not the Bulletin applied?

Hope the school run later today is 'squeal' free :D
2016MY V6S Coupe RWD Auto 380PS Supercharged
Rhodium Silver
Panoramic Glass Roof
Sports Seats (heated) in Jet Leather
Seat Memory Pack 2 (14x14 way)
Powered Tailgate (open & close)
Reverse Park Camera with Guidance
Front Parking Aid
User avatar
MajorTom
Posts: 679
Joined: Tue Apr 20, 2021 7:57 pm
Location: Luxembourg

Post by MajorTom »

RPSN wrote: Tue Sep 14, 2021 11:46 am
MajorTom wrote: Mon Sep 13, 2021 10:13 pm Hmm... my brakes have recently also occasionally squealed a bit and I was going to post a question about it.

I see that the bulletin says "NOTE: Normal Warranty procedures apply". So this would typically be covered by warranty? My car is just with the dealer to get a new O2 sensor and diff under warranty so if this is a warranty matter I might tell them to fix this too.

I assume your car has the 380mm rear discs? (optional on the R-Dynamic). If so, and the rear brakes are found to squeal, I would think the Technical Bulletin applies. This should be covered under warranty as your car is still within the warranty period.

However a Special Service Message (SSM) has since been issued on 21/09/2018 with the title ‘SSM74090 - X152 (F Type) 19 inch Rear Brake squeak / squeal’ (attached).

Taken from the SSM.....

Issue: A customer may present an F-Type with 19 inch wheels exhibiting rear brake squeak / squeal. Although the noise does not indicate a degradation in functionality or braking performance, it may lead to customer dissatisfaction, and unscheduled retailer visits for repair action.

Cause: Under investigation by JLR engineering.

Action: Please pass on the following information to any concerned customers:
1. The noise may not necessarily result in a degradation of friction material performance.
2. Discuss with them the scenario’s when the noise occurs – see questionnaire below, and complete the relevant sections of it with the customer if possible.
3. Advise the customer that you will raise an EPQR so that JLR Engineering can review the concern.

Although your car has 20 inch wheels, some of the information may still be relevant?

Being as your car is already with the dealer for a new O2 sensor and diff, it would be a good idea to mention the brake squeal, Technical Bulletin and SSM to them.
Thanks, that's some good info. Yep, I've got the big 380 mm rear brakes. Unfortunately didn't read this before I picked the car up today so never got around mentioning this but will bring it up with my other dealer that will service the car later this week.
MY18 V6S R-Dynamic coupé RWD with about every toy and option you could get
BRG, design black pack, 20" carbon blades, pano, full Sienna tan interior with performance seats...
User avatar
RPSN
Posts: 1611
Joined: Sat Nov 16, 2019 2:09 am

Post by RPSN »

Worth a try 👍
2016MY V6S Coupe RWD Auto 380PS Supercharged
Rhodium Silver
Panoramic Glass Roof
Sports Seats (heated) in Jet Leather
Seat Memory Pack 2 (14x14 way)
Powered Tailgate (open & close)
Reverse Park Camera with Guidance
Front Parking Aid
Edinburgh75
Posts: 26
Joined: Sat Aug 14, 2021 8:48 am

Post by Edinburgh75 »

RPSN is certainly a Jaguar god!

Happy to say the squeal has stopped. I had a call in the afternoon from the workshop manager who told me the master tech stripped the callipers and pads and greased everything in sight. The bulleting mentioned here does not apply to the 2020 R because I have the bigger and newer brakes according to him.
I did then get a call from the general manager who apologised for the lack of contact and said that the whole group has had to take on a lot of Landrover breakdown calls as the app ping and isolation issues have affected the main response number which has put undue strain on their phone system. I can't argue that since I can't verify or deny.

Something to bear in mind if, like me, you struggle to reach anyone.

Thanks for the advice on here, a really invaluable group of owners
2020 F Type Coupe 575 in Silicon Silver
User avatar
RPSN
Posts: 1611
Joined: Sat Nov 16, 2019 2:09 am

Post by RPSN »

:lol: I wouldn’t go as far as that but I try to help where I can.

Glad the brake squeal issue on your car has been resolved 👍
2016MY V6S Coupe RWD Auto 380PS Supercharged
Rhodium Silver
Panoramic Glass Roof
Sports Seats (heated) in Jet Leather
Seat Memory Pack 2 (14x14 way)
Powered Tailgate (open & close)
Reverse Park Camera with Guidance
Front Parking Aid
Post Reply

  • You may also be interested in...
    Replies
    Views
    Last post