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[TheBoy]

Coolant flush was done a few months ago, after I had the pump changed. How do you do an oil flush?

follow the instructions on the bottle

was the coolant flushed withh a cleaning agent, such as forte cooling system flush?

[chartz]

I will have to ask my mechanic!

[osealy]

I tried all the recomendations , except oil flush.
Stat, pump, rad flush, leccy fans wired permanently on.
In the end I fitted a new rad , easy, 180 quid. It now sits at 95, 97 on inclines at 80mph. My viscous is fitted but doesn't engage.

Now  my steering pump banjo is leaking. The nut is a c##t to get at.

[TheBoy]

I tried all the recomendations , except oil flush.
Stat, pump, rad flush, leccy fans wired permanently on.
In the end I fitted a new rad , easy, 180 quid. It now sits at 95, 97 on inclines at 80mph. My viscous is fitted but doesn't engage.

Now  my steering pump banjo is leaking. The nut is a c##t to get at.

Any cruising speed, and I mean ANY, mind would never go above 96C.  Never cruised it above 130mph.

Therefore, I'm guessing you still have an issue

[chartz]

I tried all the recomendations , except oil flush.
Stat, pump, rad flush, leccy fans wired permanently on.
In the end I fitted a new rad , easy, 180 quid. It now sits at 95, 97 on inclines at 80mph. My viscous is fitted but doesn't engage.
 

You mean the viscous clutch was always engaged like mine prior to radiator change ?

[osealy]

No. It just spins uselessly, hot or cold. But I put it back anyway as it feathers along with the pump.
As TB says I may still have a prob but I dont like the idea of an oil flush. Still going strong at 167K.

[chartz]

So it squeals continuously like mine then?

[osealy]

No it's silent. It just doesn't work. I did use to drive a 94M auto est with a working viscous, it used to sound like a jet readying for take off. Temp always stayed below 90 even towing 1500kg

[Pitchfork]

My Viscous is permanently locked up so that I sound like a Eurofighter taking off
Is there a fix for locked Viscous's other than TBs anticipated suggestion of throwing them away?
Feint recollections of someone posting a remedy that involved heating them up

[TheBoy]

My Viscous is permanently locked up so that I sound like a Eurofighter taking off
Is there a fix for locked Viscous's other than TBs anticipated suggestion of throwing them away?
Feint recollections of someone posting a remedy that involved heating them up

renew, approx £70 iirc from bmw

[Pitchfork]

My Viscous is permanently locked up so that I sound like a Eurofighter taking off
Is there a fix for locked Viscous's other than TBs anticipated suggestion of throwing them away?
Feint recollections of someone posting a remedy that involved heating them up

renew, approx £70 iirc from bmw

The difficulty will be proving that it has been stored vertically

[TheBoy]

My Viscous is permanently locked up so that I sound like a Eurofighter taking off
Is there a fix for locked Viscous's other than TBs anticipated suggestion of throwing them away?
Feint recollections of someone posting a remedy that involved heating them up

renew, approx £70 iirc from bmw

The difficulty will be proving that it has been stored vertically

exactly, so dont bother, its not needed.

[chartz]

Well live in France... It is needed, in traffic jams or in mountainous areas in summer.
My brand new, BMW-sourced viscous clutch is already busted, after three days. Always engaged, although temp is normal. Even from cold.
As Americans would put it, bummer.

[Pitchfork]

Well live in France... It is needed, in traffic jams or in mountainous areas in summer.
My brand new, BMW-sourced viscous clutch is already busted, after three days. Always engaged, although temp is normal. Even from cold.
As Americans would put it, bummer.

Probably because they stored it flat in the parts dept

[chartz]

I'm on my fifth defective brand new one, all from BMW!
They tell me it's my fault, my car is rotten, they've never had a problem before.