Hi all, just want to help out my fellow enthusiasts. I have just found a problem that I reckon would effect almost every 850. My brother and myself both have 850 t5r's, one black and one yellow. The brake booster hose from the booster in both of these vehicles needed replacing. The original hose collapsed and thus results in poor braking performance. No Vacuum means reduced brakes unless you have huge thigh muscles!!! The hose is defective near the booster under the first clip. Hope this helps you all.

 

I will check this on my wagon...seems like I have this problem intermittently.