Bleeding Nipples !!

[stwat]

I'm replacing a brake line on my 1989 S-Class so need to know what size the bleed nipples(valves) on the callipers are so I can buy the correct size ring spanner.(none of mine fit!)

Is there a special brake bleeding spanner I can buy to fit the valves perfectly? If so what size?

Many thanks in advance And if anyone does have bleeding nipples, please see your local doctors surgery for help and advice!!

 

[jonnyboy]

If it was me I would replace the nipples anyway as a matter of course. Don't rely on the new being the same as old.
Get plenty of plusgas around the nipples before you attempt it.

 

[trainer]

Apologies I thought when I read the title you had had a jogging injury.

 

[219]

Stu , it is best to order new nipples from the dealer against your chassis no.

I have found in the past ( I think it was my 190 2.6 ) that the nipples on the front calipers were different from the ones on the back !

At least getting the new ones there , you'll know they are correct , and can then go into a tool shop with them and get a spanner to fit before starting .

 

[Stratman]

If you're buying a spanner specifically for the job I'd look for a six sided one, rather than a twelve sided variety. The nipples can be hard to shift and a twelve sider can round it off. A six sider has more area on which to act.

 

[johnsco]

I agree with Stratman.
Be very gentle with them if they've not been loosened for some time.
They can seize, and there is a real danger of shearing them off.
I've never done it on an MB, but I have done it on another vehicle.

 

[mazza]

I'm replacing a brake line on my 1989 S-Class so need to know what size the bleed nipples(valves) on the callipers are so I can buy the correct size ring spanner.(none of mine fit!)

Is there a special brake bleeding spanner I can buy to fit the valves perfectly? If so what size?

Many thanks in advance And if anyone does have bleeding nipples, please see your local doctors surgery for help and advice!!

Hi Stu


ATE calipers - 9mm
Lucas - 9mm
Girling - 9mm

mazza

 

[stwat]

Many thanks peeps

I'l get some new nipples when the shops re-open(ooeer)


Stu

 

[stwat]

It looks like a trip to hellfrauds tomorrow for one of these.
Halfords | Halfords Professional Flare Spanner 9x11mm

 

[Tiff]

+

 

[stwat]