Suspension: 850: - Rear Chassis Leg Repair / Suspension upgrade Tdi 850

diplomat2.6 · Jul 14th, 2019, 21:22

My 850 just got an advisory on the rear chassis legs and towbar corrosion, so I thought I'd make a job of it whilst I'm waiting for my wheels to be refurbished.

I've got some trailing arm bushes and tool, but when I replaced the rear shocks/springs, I noticed the top washer was like a pie crust. E.g.

https://images.app.goo.gl/5bkseAS8Kuf1Cecn7

Are they easily available (part number 1387906)? Not listed on PFS or ebay but seem to be available abroad - with quite high shipping costs.

Secondly, I sense some welding is needed. Where might the ECU be located in case I need to remove it?

Thirdly, I wondered whether the ride quality might be enhanced by replacing the rear springs. I fitted the Novomat conversion kits from PFS about 5 years ago, and it seems a little bouncy and crashy. It is much better when the tank is full of diesel, or when there are people in the car. They do an Eibach kit for £180 all round which people seem to rate. As the front shock mount seems a little clunky, I could do that at the same time.

All advice/thoughts welcome!

Jul 14th, 2019, 21:22	#1
diplomat2.6 Junior Member Last Online: May 2nd, 2023 13:21 Join Date: Mar 2009 Location: Northants	Rear Chassis Leg Repair / Suspension upgrade Tdi 850 My 850 just got an advisory on the rear chassis legs and towbar corrosion, so I thought I'd make a job of it whilst I'm waiting for my wheels to be refurbished. I've got some trailing arm bushes and tool, but when I replaced the rear shocks/springs, I noticed the top washer was like a pie crust. E.g. https://images.app.goo.gl/5bkseAS8Kuf1Cecn7 Are they easily available (part number 1387906)? Not listed on PFS or ebay but seem to be available abroad - with quite high shipping costs. Secondly, I sense some welding is needed. Where might the ECU be located in case I need to remove it? Thirdly, I wondered whether the ride quality might be enhanced by replacing the rear springs. I fitted the Novomat conversion kits from PFS about 5 years ago, and it seems a little bouncy and crashy. It is much better when the tank is full of diesel, or when there are people in the car. They do an Eibach kit for £180 all round which people seem to rate. As the front shock mount seems a little clunky, I could do that at the same time. All advice/thoughts welcome! Last edited by diplomat2.6; Jul 14th, 2019 at 21:42.

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