Thread: 300TDI Vacuum Pump stuffed

Consensus seems to be to get a Bearmach replacement, don't touch an OE Wabco with a barge pole.

Mine hasn't been in long enough to confirm this, but that's the way I jumped.

Just finished installing the new one.
It's a Wabco in a Bearmach box.
The cover is still riveted, I thought they changed them to torx bolts.

Seems my brakes are a little better, less effort for braking force,
might have been low on vacuum.

As there is only one seal, it would make sense that the vacuum would be leaking when running and oil would leak when stopped.

Originally Posted by jboot51

Just finished installing the new one.
It's a Wabco in a Bearmach box.
The cover is still riveted, I thought they changed them to torx bolts.

Seems my brakes are a little better, less effort for braking force,
might have been low on vacuum.

As there is only one seal, it would make sense that the vacuum would be leaking when running and oil would leak when stopped.

Really ?

The one I bought was painted black not anodised, no identification in a Bearmach box ?

ive got 6 dead ones in the shed the last one only lasted 2000km when it seezed up and the one on there now leaks oil was looking at going back to alternater vacume pump

Wouldn't think there would be enough room to run an alt with a vac pump look on eBay for a 12 volt vac pump would do the trick

What do you think about this one?

12 volt electric vacuum pump brake booster vacuum pump 12 volt new | eBay

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That would be fine. I forgot to mention there expensive but so is the original I guess

You should really replace the brake booster when you replace the vacuum pump.

I bought a new Wabco and couldn't get warranty unless I bought a new brake booster and did both. The boosters split and leak (hairline cracks around the mounts I think), it's a known fault, and the leak forces the vacuum pump to work overtime and kill itself.

Chatting with All 4x4 spares, they told me they had all sorts of issues with the vacuum pumps until someone worked out it was actually the brake boosters that are the issue. Is Defender specific and you are best to assume that your brake booster has the cracks, because its very common.

I've had no issues with the Wabco. Done about 5,000kms now. Replacing both pump and booster made a big difference to the brake feel.