Peugeot 106 Master Cylinder

[Pete731]

So I have decided to renew some of the braking components on my 106 Independence.

I have worked out that the calipers are Ate so I can get some new pads, and I will be replacing the discs as well.

The only problem is with identifying the brake master cylinder. It has the number 167FA0 stamped on the end but I can't find any references to this anywhere.
If I put all of the car info into the AutoDoc website it lists several different options.

https://www.autodoc.co.uk/car-parts/bra ... 5D%5B%5D=4

I don't have ABS and it has 4 connections so that narrows it down but there are two different bore sizes. 19mm and 20.6mm. Not a huge difference but they all fall into one size or the other making me think that it needs to be specifically the right size. I have tried various sites trying to find part numbers but with no luck. Could anyone point me in the right direction?

Thanks in anticipation.

[Stickyfinger]

With AutoDoc, If you check (click) the --- Show OEM numbers of the product ---- tag at the bottom od the product description you can cross ref the numbers to other makes (Citroen for example) who use the same item but will have different product numbers....that may include the number you have.

I do not think the piston bore size would matter that much unless you need a rebuild kit for it, as a replacement (whole) unit I would not think so with such a small difference.

[PaulC5]

If you get a cylinder with a different bore with everything else the same, then the brake pedal travel will be different - buy smaller then more travel, buy larger then less travel but in reality you might not notice.

[Oldpug]

Pete,
If you look closely, the bore size is cast into the master cylinder housing.

[Pete731]

I expanded the AutoDoc OEM numbers and for the 106 all the options appear to be 4601**

I have had a closer look at the master cylinder and besides the number stamped in the end I have found "00 2 17" underneath which may well be a date code given the car was first registered August 2000 along with "3.6" on the cylinder body. And the Ate logo.

[PaulC5]

If you post your VIN somebody who has access to the Peugeot parts diagrams may be able to look up the master cylinder part number and you can then buy one to that number. The first 4 numbers as you have found just effectively are for master cylinders but it is the next 2 numbers that specify the one for your car.

[Pete731]

Great. My VIN number is VF3**************[VIN obfuscated, can be read by forum staff]. Should come back as a 1.1 Independence.

[Oldpug]

I think its safe to say its a 19.05mm (19) Master Cylinder.

[wheeler]

There are 2 listed Depending on if it's Teves or Bendix-Bosch.
Both appear to be the same diameter

[Pete731]

Thanks Wheeler for looking up the parts diagrams, but unfortunately I have the Ate system.

[Stickyfinger]

Give these guys a quick call....

https://www.peugeot-tuning-parts.co.uk/ ... nders.html

[Pete731]

Cheers Stickyfinger, will do.

[Pete731]

Chased them up 3 times. Still no reply. Maybe they are just too busy. I will take the current master cylinder off and measure it.

Thing is the problem I am having is that the rear brakes are coming on before the fronts. Only just though. The mechanic at the garage I took it too thinks that the MS should be changed but I don't see how this would cause that sort of problem. Don't the 106s have a split system with one front and diagonally opposite rear wheel on one system and vice versa? And no limiting valve to the rears. That would mean the front two connections to the MS would be for one front and one rear and the same for the rear two connections. So the fact that the rears are coming on first would not be due to the MS producing unequal pressures to the two systems as the car would just pull to one side if that were so.

The rear cylinders were replaced a little while ago and I am wondering if the right ones have been fitted. So, the smaller option would be 19mm dia. and if they are this size then they could be eliminated from causing the problem. If they are the larger diameter. then maybe they might need changing.

[Pete731]

I should add that if the adjuster on the rod from the brake pedal to the servo is wound in giving less pedal travel the problem of the rears engaging first is exacerbated. Back the adjuster off and it is much less noticeable.

[PaulC5]

Have you checked if the front brakes are seized or the hoses to them are restricted ? If so the rears could come on before the fronts unseize and the pads move ?

Have you tried a Peugeot dealer for a master cylinder ?