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Thread: Brake pad and disc info

  1. #1
    Senior Member Andy ross's Avatar
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    Brake pad and disc info

    Originally Posted by Neilr
    Did you get your pads sorted? The dealer might not be the best place to get pads from as the OE pads are usually expensive (but obviously of decent quality). There are however many good quality alternatives at much better prices.

    Here is a summary of the pad sizing for the twin-piston caliper cars, which is a continuous area of confusion. The early cars had carrier insets at the front only. The later cars at the back only. All cars with the twin piston-calipers need the spring-clips on the front pads. The carrier inserts protect the carriers and can be used on any of these cars in conjunction with the shorter pads. If you are not using the inserts, take the longer pads.

    Front:
    Up to VIN M45254: Twin piston calipers, short pads with carrier inserts (163.3 mm).
    Between VIN M45255 and N52047: Twin piston calipers, longer pads without carrier inserts (114.2 mm).

    Rear
    Up to VIN M45254: Longer pads without carrier inserts (164.7 mm)
    Between VIN M45255 and N52047: Short pads with carrier inserts (113 mm)

    From VIN N52048: ATE calipers, both front and back are different to the earlier cars. I think the TRW codes are GDB1705 & GDB1513.

    Good OE-quality pads include the TRW Cotec pads, which are also currently amazingly well priced:

    Front w/o insets: GDB1510 (164.7 mm) http://www.ebay.co.uk/itm/Jaguar-S-T...item2c992ff524
    Front with inserts: GDB1401 (163.3 mm) http://www.ebay.co.uk/itm/Jaguar-S-T...e81c#vi-ilComp
    Rear with inserts: GDB1511 (113.0 mm) http://www.ebay.co.uk/itm/Jaguar-S-T...item51cea27996
    Rear w/o inserts: GDB1398 (114.2 mm) http://www.ebay.co.uk/itm/Jaguar-S-T...item51cea2c95a



    Great details!

    This needs to be in Stickies.
    S type 2.7 se

  2. #2
    Senior Member Neilr's Avatar
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    I had a typo in the original which swapped the lengths of the long front and rear pads. I did edit my post, but the quoted post unfortunately contained the error.

    It should clearly be:

    Front:
    Up to VIN M45254: Twin piston calipers, short pads with carrier inserts (163.3 mm).
    Between VIN M45255 and N52047: Twin piston calipers, longer pads without carrier inserts (164.7 mm).

    Rear
    Up to VIN M45254: Longer pads without carrier inserts (114.2 mm)
    Between VIN M45255 and N52047: Short pads with carrier inserts (113 mm)
    S-Type 3.0 Manual MY2001 in Pacific Blue with Cashmere Leather Sport Seats, Sunroof, Melbourne Alloys, Premium Sound plus some other stuff ... 55k miles.
    XKR 5.0 Speed Pack MY2011 in Polaris White with Ivory/Charcoal Leather, Nevis Alloys and R-Performance Interior plus some other stuff ... 17k miles.
    Hyundai Tucson 1.6T AWD MY2016 in White Sand. Basic, comfortable and surprisingly fast and competent ... 12k miles.
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  3. #3
    Senior Member Neilr's Avatar
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    Through the many years of production and the various versions of the S-Type, a number of brake calipers and discs sizes were used. The earlier cars where fitted with Lucas calipers (up to N52047, I believe), S-Type Rs with Brembo calipers and all later cars with some form of ATE ones (N52048 onwards). Information available from many car parts outlets is incomplete or wrong. Examining and simply measuring what is fitted to your car avoids most problems.

    The main problem area in selecting new discs is which size is fitted.

    For the non-S-Type Rs there are:
    Front discs - 300, 305, 320 (up to (N52047) and 326 mm (N52048 onwards)
    Rear discs - 288 mm (up to (N52047) and 326 mm (N52048 onwards)

    For the S-Type R:
    Front discs - 365 mm Brembo (up to (N52047), 355 mm ATE (N52048 onwards)
    Rear discs - 330 mm solid Brembo (up to (N52047) and 326 mm ventilated ATE (N52048 onwards)

    The main problem area in selecting new pads is whether wear-resistant stainles steel inserts are fitted to the Lucas calipers.

    Here is a summary of the pad sizing for the twin-piston caliper cars, which is a continuous area of confusion. The early cars had carrier insets at the front only. The later cars at the back only. The carrier inserts protect the carriers and can be used on any of these cars in conjunction with the shorter pads. If you are not using the inserts, take the longer pads.

    If the rattle is coming from the pads, it could be that the shorter pads are being used without the stainless steel inserts.

    Front:
    Up to VIN M45254: Twin piston calipers, short pads with carrier inserts (163.3 mm).
    Between VIN M45255 and N52047: Twin piston calipers, longer pads without carrier inserts (164.7 mm).

    Rear:
    Up to VIN M45254: Longer pads without carrier inserts (114.2 mm mm)
    Between VIN M45255 and N52047: Short pads with carrier inserts (113 mm)

    The oficial part numbers can be found by using the appropriate VIN range from the S-TYPE - BRAKE DISC AND CALIPERS list at Jaguar Classic Parts.

    https://www.jaguarclassicparts.com/u...c-and-calipers

    Bottom line: It is not absolutely clear if the VIN ranges are always correct, so measure the discs before ordering, check which calipers you have, and make sure that the pads are the correct length for the caliper.
    Last edited by Neilr; 09-10-18 at 07:04. Reason: STR Rear disc size correction
    S-Type 3.0 Manual MY2001 in Pacific Blue with Cashmere Leather Sport Seats, Sunroof, Melbourne Alloys, Premium Sound plus some other stuff ... 55k miles.
    XKR 5.0 Speed Pack MY2011 in Polaris White with Ivory/Charcoal Leather, Nevis Alloys and R-Performance Interior plus some other stuff ... 17k miles.
    Hyundai Tucson 1.6T AWD MY2016 in White Sand. Basic, comfortable and surprisingly fast and competent ... 12k miles.
    FIAT Coupe MY1997 in Steel Grey with Tan Leather ... 55k miles.

  4. #4
    Senior Member Jim_S-V6_2004's Avatar
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    Many thanks Neil.

  5. #5
    Senior Member Lost it's Avatar
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    So without actually measuring the discs... Could I presume that my 4.0 car has 300mm discs as it came on 16 inch wheels?

    I need to measure them anyway...
    2001 3.0 SE Auto, Satnav, winter pack. Dark Blue, all the toys.
    2004 3.0 Sovereign Estate. Winter pack. Fixed. For Sale.
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    2000 V8 3.2 XJ8 LWB. "Prom" car. Lovely. Should sell this one too really...
    2005 "AllyCat", 3.0 XJ6 SE.
    2000 S type 4.0 V8. Latest toy.
    VFR800A and a VFR 800F

    Still beating cancer. Trevor 2, Cancer 0.

    Sure I took the Red pill....

  6. #6
    Senior Member Neilr's Avatar
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    Almost certainly. I don't think any original 1999-2002 car had anything but the 300mm/288mm combination.
    S-Type 3.0 Manual MY2001 in Pacific Blue with Cashmere Leather Sport Seats, Sunroof, Melbourne Alloys, Premium Sound plus some other stuff ... 55k miles.
    XKR 5.0 Speed Pack MY2011 in Polaris White with Ivory/Charcoal Leather, Nevis Alloys and R-Performance Interior plus some other stuff ... 17k miles.
    Hyundai Tucson 1.6T AWD MY2016 in White Sand. Basic, comfortable and surprisingly fast and competent ... 12k miles.
    FIAT Coupe MY1997 in Steel Grey with Tan Leather ... 55k miles.

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