To jrhaze
Re from my previous comment
1] Check level in resevour. If low, the pressure feed hose is from lower side of PS pump into bottom of resevour. Easy DIY to replace hose, but use only Febi 2615 hydraulic fluid into resevour. PS pump uses different fluid Febi 08972.

Before you replace the accumulators, you might as well replace this hose, and completely flush the system. No sense putting funky fluid in your virgin accumulators.

Bob

The level is fine in the reservoir. I'll be sure to replace the hose and flush the system with new fluid and a new filter when I do the accumulators anyway though.

Is this Febi fluid only available at teh mercedes dealer?

Hi Men
Looking under the car today, and yes I'm pretty sure its the Accumulators, those banjo bolts are causing touble. I've put some penetrine on them and I'll have a go at them again soon. Then the pencil test.
I have a older 126 off the road I'm wondering if anyone knows if the accumulators are interchangable with the 124's. iknow there good in the 126 but am also wondering if its worth putting second hand ones in.
Thank Mark

It's available at all the usual MB parts suppliers ie fastlane etc.
Bob

Replace with new accumulaors, you dont want to go thru this messy job three times. Once to remove yours, once to remove them from the donor car, and then when te "donors" fail. They are less than $100 each

Ok Guys the jobs done.
Took all advise but had major problems. It was the accumulators; there was no sign of froth in the reservoir probably due to no nitrogen left in the accumulators. I got new ones but failed to get new nuts for them. Mistake number 1. Had the car up on stands not a lot of room and very hard to line up the hydraulics. Put the old nuts back on with a bit of loctite. These nuts are soft metal and are easley rounded off. But I thought it didn't matter, as it would be a long time till I had to get them off again. Mistake number 2.
Got the wife and 3 kids in the back for the 120kg's needed for the bleed and self reset. Started the car and watched the oil pour from underneath. Problem was a cross-threaded hydraulic nut I had been warned of and thought I had been careful enough to avoid. Put the car up on stands again and that's when I wish I had of replaced the accumulator 6mm nuts. I had to pull the accumulator back out because I couldn't get that hydraulic nut to line up without cleaning out the thread. Got two of the three nuts off, but it took hours to try to get the third off. I had to cut it of with die grinder, the only tool I had that could get into the space. A long and tedious job. Once I got the accumulator out I was able to clear the thread but had to get a new nut put on the hydraulic line by a local break specialist.
Needless to say a job that should've taken a couple of hours took all weekend.
I learnt a lot by this, and I guess that’s why we do it ourselves.
And the car drives like a dream again.
Thanks for your help guys.
Mark