190 brake flexible change

[stuarth]

I need to change the flexible pipes to the front brakes of my 190E. Bought new pipes and there is a male on one end and female on the other but they are BOTH normal right hand thread. This means that I can't twist the pipe and one both ends screw in (which I could if one end had been left hand thread. The joints on the car of fixed - the one in the caliper and the one terminating the end of the solid brake pipe.
Does this mean that to change the pipe I need to dismount the caliper?

 

[television]

I need to change the flexible pipes to the front brakes of my 190E. Bought new pipes and there is a male on one end and female on the other but they are BOTH normal right hand thread. This means that I can't twist the pipe and one both ends screw in (which I could if one end had been left hand thread. The joints on the car of fixed - the one in the caliper and the one terminating the end of the solid brake pipe.
Does this mean that to change the pipe I need to dismount the caliper?

Afraid so, but only 2 bolts holding them on

http://www.detali.ru/cat/oem_mb2.as...717.411412&CT=F&cat=15C&SID=42&SGR=030&SGN=02

 

[stuarth]

This is going to sound stupid..which two screws hold the thing on? Is it 17 or 26/29 on the diagram. There are two smallish bolts (11mm?) which have a rubber diagram around them and then two larger ones (17mm?) Or do these small ones just hold this anchor in place? Since I have never changed Mercedes pads even, these brakes look odd. Do you need to remove th anchor to change the pads as well? All a mystery and the Haynes book I have is pretty useless (the french version). AN explanation in simple terms would help!
Oddly, the Haynes manual does not mention removing the caliper to change the flexibles though it omits to mention why not...

 

[television]

Its the 2 bolts 29 17mm that go into the 2 holes in 20, the other bolts are for separating tie caliper.

So only the 2 x 29 bolts

 

[stuarth]

done without removing the caliper

Done. I didn't need to remove the caliper or anything since the solid pipe collar screws into the end of the flexible tube. Undo this and then undo the other end of the flexible from the caliper. Screw the new one in the caliper then refasten the solid tube collar to the other end. If goes through a mounting bracket to stop it vibrating. I had a clue it was very simple when I saw a garage claiming to change flexibles for 10 pounds labour - this could not possibly mean removing a caliper!

 

[television]

Done. I didn't need to remove the caliper or anything since the solid pipe collar screws into the end of the flexible tube. Undo this and then undo the other end of the flexible from the caliper. Screw the new one in the caliper then refasten the solid tube collar to the other end. If goes through a mounting bracket to stop it vibrating. I had a clue it was very simple when I saw a garage claiming to change flexibles for 10 pounds labour - this could not possibly mean removing a caliper!

Sorry about that they are not all the same and some you do have too, but pleased that you have fixed it

 

[television]

It upsets me if I post wrong, the opening question threw me, also as I have to do one next week where the pipe does not have a rotating end.

 

[Ian B Walker]

If you want to remove the flexible pipe without removing the calliper this is what you should do.

Tools needed:-

Wire brush

Good ratchet (my preference is a 3/8 drive with a wobble head)
11mm crows foot socket
Small extension bar (about 25mm long)
14mm open ended spanner
Release fluid (like WD40)

Procedure.

Brush the chassis end of the pipe to remove all the rust and dirt. Spray release fluid over the nut and leave for 10 mins. Slacken the pipe from the calliper with the 14mm spanner. Go back to other end and fit 11mm Crows foot spanner, extension and ratchet to nut (Front of pipe). Put 14mm spanner on flexible pipe end. Work ratchet back and forth (these will be tight) keep spraying release fluid on nut. Eventually they will pop free. DO NOT try to use and open ended spanner on the 11mm nut, you will round it off and end up having to put either a new end or a new brake pipe (metal). Unscrew the nut from the pipe, retain the locking plate which will fall away and keep. Unscrew pipe fron calliper. Refitting is a reversal of this proceedure.