[928uk] Differential control off warning

[Richard Armstrong]

You can drive it just fine. You won't have any limited slip diff but 
just drive a little slower!😁
Regards
richard

On 06/02/2023 15:36, Jan-Willem Labeij wrote:
> Thanks Richard,
> That was quick!
> Can I drive it or does it need fixing asap…
>
> Sent from my iPad
>
>> On 6 Feb 2023, at 15:28, Richard Armstrong 
>> <richard at ritech-systems.com> wrote:
>>
>>  Hi Jan-Willem
>> That means your PSD pump is not working - not keeping the system at 
>> pressure so it shuts itself down.
>> It could be the brake fluid level is low (but that would be because 
>> of a leak anyway) or, more likely, the pump has stopped pressurising 
>> the fluid. It is a spring and ball bearing rotating in an eccentric 
>> case and when the fluid gets old and gets some moistue in there it 
>> gets crystaline and jams the pump.
>> It could also be the accumulator leaking - it is very high pressure 
>> and not to be messed with if you don't know what you are doing!
>> Richard
>>
>> On 06/02/2023 15:05, Jan-Willem Labeij wrote:
>>> A red differential control off warning is showing after start up.
>>> 1990 S4, what does it mean?
>>> Cheers,
>>> Jan-Willem
>>>
>>> Sent from my iPad
>>
>> -- 
>> <Email%20Signature%202018.jpg>

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