W140 brake master cylinder

[Selmermk6]

My car (s600 1998) according to my mechanic needs a new brake master cylinder.

The car had new brake lines, (corroded) hoses, rear disks and pads fitted. It passed its MOT and then days later the brakes felt spongy. The brakes have been bled a few times and even a used cylinder was fitted, but no joy.

The problem is the part is now discontinued (A0054308101). Hunting high and low, but cannot find one. I have read on some other forums that you need to do something with solenoid attached to the cylinder, when bleeding the brakes.

I have ordered a repair kit, but that is not due to arrive for at least 3 weeks.

Any ideas?

 

[grober]

some alternative part nos? the OEM PART NO ATE ® 03.2026-0712.3 Brake Master Cylinder

 

[Selmermk6]

some alternative part nos?
View attachment 122976

Thanks, but I have looked at the part numbers and all the cylinders have the connections at a different angle. Apparently, all 98 models have the 8101 part fitted.

 

[grober]

There are specialist companies will rebuild your original master cylinder--- if it's pitted or scored any new seals will wear rapidly- repair normally involves inserting a stainless steel sleeve machined to original dimensions-- this is just one of them there are others

Classic Car Brakes Ltd, brake cylinder re-sleeving, brake servos, brake calipers, Classic car spares, classic car brake parts, hydraulic brake components, classic vehicles, vintage vehicles, classic cars, Stourport, Stourport-on-Severn, Worcestershir

Classic Car Brakes Ltd carry out brake cylinder re-sleeving and are specialist suppliers of hydraulic brake components for classic and vintage vehicles such as classic cars, vans, trucks, buses, plant and agriculture

www.classiccar-brakes.co.uk

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[Selmermk6]

There are specialist companies will rebuild your original master cylinder--- if it's pitted or scored any new seals will wear rapidly- repair normally involves inserting a stainless steel sleeve machined to original dimensions-- this is just one of them there are others

Classic Car Brakes Ltd, brake cylinder re-sleeving, brake servos, brake calipers, Classic car spares, classic car brake parts, hydraulic brake components, classic vehicles, vintage vehicles, classic cars, Stourport, Stourport-on-Severn, Worcestershir

Classic Car Brakes Ltd carry out brake cylinder re-sleeving and are specialist suppliers of hydraulic brake components for classic and vintage vehicles such as classic cars, vans, trucks, buses, plant and agriculture

www.classiccar-brakes.co.uk

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Thanks, I will contact them.

 

[grober]

Thanks, I will contact them.

If shopping around may be useful to ask if they have reconditioned a w140 master cylinder before- likely to be ATE--Good Luck