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Car Forum / Saab Cars / February 2006Saab 9-3 - How long/difficult to change all pads/discs?
99 9-3 convertible. This is a bit of a general question, but how long should it take, and how difficult is it to change all the pads/discs? I can't do it myself but I work at MIRA which means I might be able to call in a favour, but it doesn't guarantee familiarity with anything specific/quirky to Saabs (it might, haven't asked yet). What would I need to buy? Looking at Elkparts I'm assuming I would need: 1 x pair Brembo front discs 1 x pair Brembo rear discs 1 x set genuine Saab front pads 1 x set genuine Saab rear pads but is there anything else? TIA, Paul  Signaturepaul@spamcop.net >99 9-3 convertible. This is a bit of a general question, but how long >should it take, and how difficult is it to change all the pads/discs? [quoted text clipped - 14 lines] >TIA, >Paul There's nothing Saab specific about them. I'd guess at a 2-3 hours for a one-off DIY job. Don't forget the thread-lock for the torque-member bolts and the disk retaining screws. As I discovered, it's well worth doing a full adjustment of the handbrake shoes and cable whilst you have them apart - add another half-hour or so. Cheers, Colin. > There's nothing Saab specific about them. I'd guess at a 2-3 hours for > a one-off DIY job. Don't forget the thread-lock for the torque-member > bolts and the disk retaining screws. If they havn't been off before I'd have a blowlamp and an impact driver handy. Retaining screws can be a b'. DaveK. Does this model have the handbrake on the front caliper? > >99 9-3 convertible. This is a bit of a general question, but how long > >should it take, and how difficult is it to change all the pads/discs? [quoted text clipped - 24 lines] > > Colin. >Does this model have the handbrake on the front caliper? No. It's on drums inside the rear disks. Cheers, Colin. > 99 9-3 convertible. This is a bit of a general question, but how long > should it take, and how difficult is it to change all the pads/discs? [quoted text clipped - 11 lines] > > but is there anything else? Nothing unusual about the 93 (floorpan is essentially a vectra). It may also be worth while fitting new hand brake shoes at the same time, given that they're likely to be the original ones, and there's every chance that the linings will be starting to lift of. Even if they look ok, I'd still change them. The last set I bought cost under a tenner. > 99 9-3 convertible. This is a bit of a general question, but how > long should it take, and how difficult is it to change all the pads/discs? > I can't do it myself but I work at MIRA... The standard 'generic' procedures are depicted in these step-by-step instructions: Front Disc Pads: http://www.msnusers.com/Sorensonbrian/diyfrontbrakes.msnw http://www.msnusers.com/Sorensonbrian/frontbrakepads2002.msnw Rear Brake Shoes: http://www.msnusers.com/Sorensonbrian/rearbrakedrums.msnw Note the lists of equipment needed (Apart from the obvious, the rest suggested have no relevance if MIRA is to do it!). Times for the swaps, from start to finish: 1 - 2 h for the rear and 1 h for the front, may be doubled if this is the first time. Easy. SignatureLin Chung [Replace "the Water Margin" with "ntlworld" for e-mail]. Standard procedure doesn't necessarily apply to SAAB. First of all SAAB has all disc brakes. Secondly, the SAAB rear disc brake caliper has a screw which you back out to loosen the pads. You cannot use a c-clamp to compress the piston, It will ruin the caliper if you do. Yaofeng wrote: > > > 99 9-3 convertible. This is a bit of a general question, but how > > > long should it take, and how difficult is it to change all the pads/ [quoted text clipped - 6 lines] > cannot use a c-clamp to compress the piston, It will ruin the caliper > if you do. Aha, thanks. As the OP correctly observed, "... at MIRA which means I [the OP] might be able to call in a favour, but it doesn't guarantee familiarity with anything specific/quirky to Saabs...." :) SignatureLin Chung [Replace "the Water Margin" with "ntlworld" for e-mail]. >Secondly, the SAAB rear disc brake caliper >has a screw which you back out to loosen the pads. You cannot use a >c-clamp to compress the piston, It will ruin the caliper if you do. Not on a 9-3. You just squash the pistons back in. The Saab workshop manual doesn't recommend a G-clamp though - it says to use water pump pliers! Cheers, Colin. > Standard procedure doesn't necessarily apply to SAAB. First of all > SAAB has all disc brakes. Secondly, the SAAB rear disc brake caliper > has a screw which you back out to loosen the pads. You cannot use a > c-clamp to compress the piston, It will ruin the caliper if you do. Sounds pretty much like normal procedure on any performance / executive car to me. SignatureSteve H 'You're not a real petrolhead unless you've owned an Alfa Romeo' http://www.italiancar.co.uk - Honda VFR800 - MZ ETZ300 - Alfa 75 TSpark Alfa 156 2.0 TSpark Lusso - Fiat Marea 20v HLX - COSOC KOTL BoTAFOT #87 - BoTAFOF #18 - MRO # - UKRMSBC #7 - Apostle #2 - YTC # > Standard procedure doesn't necessarily apply to SAAB. First of all > SAAB has all disc brakes. Secondly, the SAAB rear disc brake caliper > has a screw which you back out to loosen the pads. You cannot use a > c-clamp to compress the piston, It will ruin the caliper if you do. Not on a 93 it doesn't. It just has a standard non sliding two pot caliper. The handbrake is done by using two brake shoes in the drum machined in the centre of the rear discs. Should have opened my big mouth I reckon no owning a 9-3 and thinking all SAAB rear disc brakes have the same design. But I wonder why the simplicity of a screw inside the caliper advanced by the hand brake lever to actuate parking brake concept is ababdoned in favor of the more complicated design of having both a disc brake and a drum brake for the rear like many other cars. I thought the SAAB design elegant. > Should have opened my big mouth I reckon no owning a 9-3 and thinking > all SAAB rear disc brakes have the same design. [quoted text clipped - 4 lines] > a drum brake for the rear like many other cars. I thought the SAAB > design elegant. I think the adjust mechanism could play up, and of course clumsy people could dmage it.... (ford used a similar system). The front handbrake made a lot of sense - I used it as a very basic limited slip diff in snow :-) Another variation is seperate disk pads just for the handbrake on some alfas? I have no problem with drums - it might be a pain to have to change the shoes but little or no wear should occur. "yaofeng" <yaofengchen@gmail.com> wrote in news:1140965126.719024.112240 @i39g2000cwa.googlegroups.com: > Should have opened my big mouth I reckon no owning a 9-3 and thinking > all SAAB rear disc brakes have the same design. [quoted text clipped - 4 lines] > a drum brake for the rear like many other cars. I thought the SAAB > design elegant. The screw piston type is the most common but it's far from simple - if you find an exploded diagram of one, you'll see what I mean. My Volvo also has the shoes-inside-disc setup and it is quite simple - the shoes are levered by the handbrake cable and the caliper is bog standard. Because the caliper is simpler, it is less prone to problems and it can be overhauled if it sticks or leaks. The shoes are adjusted via a screw that you turn through a hole in the disc - no auto adjusters to worry about. Because the shoes are not in use when the wheel is turning, hardly any wear occurs, so adjustment is only required once in a while. The other advantage is that the handbrake is very efficient, or at least it is on my car :-) > Should have opened my big mouth I reckon no owning a 9-3 and thinking > all SAAB rear disc brakes have the same design. [quoted text clipped - 4 lines] > a drum brake for the rear like many other cars. I thought the SAAB > design elegant. Citroen Xantias had a reputation for running away if you parked them on a hill with the front discs still hot. They contracted and the handbrake no longer held the car. Presumably there wasn't enough "spring" in the short cable. MX-5s - at least, Mk1 and Mk2 - have a screw-actuated piston for the rear brakes. My old Mk2 Micra also did - it was a bit of a weird one, with discs all round and ABS. Later cars had ABS, but rear drums. I guess they discovered how to make ABS work despite the self-servo (snatching) action of the cheaper drums. |
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