Author Topic: 6.9 Steering feel?  (Read 696 times)

TJ 450

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Re: 6.9 Steering feel?
« Reply #15 on: 28 March 2019, 01:11 AM »
The other thing that could be a factor is fluid type used, yes given the atrocious history of a lot of cars is the reason. Other models such as the W126, 107s etc also suffer from similar wear as well. I guess I was lucky with mine as I was able to adjust the free play in the centre position out to less than 1”, but the adjuster is most of the way out now.

I have been using a synthetic power steering fluid, and change it every year or so with the later paper filter element.

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

daantjie

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Re: 6.9 Steering feel?
« Reply #16 on: 28 March 2019, 07:56 AM »
The other thing that could be a factor is fluid type used, yes given the atrocious history of a lot of cars is the reason.

Hmmm interesting.  I have clean ATF Dex III in the system, but I guess I should flip this over to full syn PS Fluid ::)
Daniel
1977 450 SEL 6.9 - Astralsilber

TJ 450

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Re: 6.9 Steering feel?
« Reply #17 on: 04 April 2019, 07:40 PM »
Yes, Kent certainly has his opinion on fluids and he has mentioned ATF vs. P.S. fluids a while back as being a possible cause of leaks and wear issues.

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

Mick74

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Re: 6.9 Steering feel?
« Reply #18 on: 22 May 2019, 01:57 PM »
A quick update on the 6.9 steering issue. I sourced a second hand box in Germany, from a 1976 6.9, and a new coupler. New fluid and filter as well. I only drove it in traffic, for a short distance, but already, it's a big improvement, with very little play and gives you much more confidence, and I still have to replace the idler arm bushes and front suspension bushes as well (the front wheel moves back under braking!). When all that is done, I'll give another update.