rear brake pads |
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kilburnmick
Groupie Joined: 06-February-2009 Status: Offline Points: 45 |
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Posted: 10-February-2009 at 13:33 |
hi everyone,can anyone tell me do i need any special tools with which to change the rear pads on my 2003 520i e39 thanks mick |
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Andrew Rolland
Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579 |
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You need either a 7mm or 8mm Allen key for the calliper retaining bolts and that's it. Andrew |
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Be exclusive and drive a Petrol 5 Series!
Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
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kilburnmick
Groupie Joined: 06-February-2009 Status: Offline Points: 45 |
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cheers Andrew,someone told me i would need a tool to wind back the piston?
mick |
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kbannon
Admin Group E39 525i Sport Individual Joined: 09-October-2002 Location: 64 Zoo Lane Status: Offline Points: 15508 |
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A g-clamp should do that for you
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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE 1997 E39 523i 2003 E39 525i Sport Individual |
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kilburnmick
Groupie Joined: 06-February-2009 Status: Offline Points: 45 |
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nice one mick |
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Andrew Rolland
Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579 |
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Once you have removed the pads from the calliper, open the bleed nipple/screw with an 11 mm open end spanner and you will then be able to move the piston back by hand. Just be careful that the brake fluid that now comes out of the bleed screw doesn't shoot out and land on the paintwork. Andrew |
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Be exclusive and drive a Petrol 5 Series!
Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto |
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dryle
Really Senior Member II Joined: 31-January-2006 Location: Enfield. Status: Offline Points: 1348 |
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Andrew,
I thought you opened the resevoir cap to releive the pressure on the piston? |
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Dave Ryle
"The power of accurate observation is commonly called cynicism by those who have not got it." -- George Bernard Shaw |
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Johnny conway
Groupie Joined: 14-October-2008 Location: Ireland Status: Offline Points: 48 |
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Id go with Andrew on this. Just my luck to mess up something in the ABS/ASC up @ the business end of the motor by forcing fluid back through the system. When undoing and tightening the bleed screw, be sure that the bleed screw is faced upward directly and also whilst winding the piston back. you can always top up the rezer when finished.(Connect a foot or so of piping to the bleed screw purely to take excess fluid away from your hands and the job @ hand.
J |
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Brucie
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dryle
Really Senior Member II Joined: 31-January-2006 Location: Enfield. Status: Offline Points: 1348 |
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Ok, its just I did a basic car maintenance course and he said to open the resevoir to allow the piston move. It means you only open 1 cap for doing both sides. |
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Dave Ryle
"The power of accurate observation is commonly called cynicism by those who have not got it." -- George Bernard Shaw |
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kbannon
Admin Group E39 525i Sport Individual Joined: 09-October-2002 Location: 64 Zoo Lane Status: Offline Points: 15508 |
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Opening the cap is the traditional method but some mechanics argue that by doing this on a car with ABS can cause damage.
I just opened the cap when I did mine last time and so far no problems! If you are opening the nipple then be sure to watch the reservoir for a drop in fluid - top it up with the same fluid (presumably dot 4) as the level will probably already be low and will only get lower as time goes on. |
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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE 1997 E39 523i 2003 E39 525i Sport Individual |
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dryle
Really Senior Member II Joined: 31-January-2006 Location: Enfield. Status: Offline Points: 1348 |
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The Mechanic said that if you open the cap as you push the piston back the brake fluid will return to correct level.
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Dave Ryle
"The power of accurate observation is commonly called cynicism by those who have not got it." -- George Bernard Shaw |
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johnnydev
Groupie Joined: 25-December-2008 Location: fremington ex31 Status: Offline Points: 46 |
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be prepared to draw off fluid from reservoir when you replace the new pads..I had to take loads out when I did fronts plus discs...is your reservoir buried under the pollen filter on the drivers side?? be careful removing the duct that fits into the bulkhead ...the plastic lugs are easily broken john
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kbannon
Admin Group E39 525i Sport Individual Joined: 09-October-2002 Location: 64 Zoo Lane Status: Offline Points: 15508 |
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I think that if you have to take some out, then it may have been topped up before when it had gone down. Normally, it shouldn't require this.
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Current: 2009 E60 520d "Sport" tractor
Previous: 1989 E30 320i SE 1997 E39 523i 2003 E39 525i Sport Individual |
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