[A45xxxllx]

For the replacement interval - see post #49 above.

For the actual spec of the rear diff oil - best to check with the dealer as there may be more than 1 type needed.

Gear set - M-B 235.63 75W-80
Coupling - M-B 235.64 74W-70

See
Link

Thanks
veeeight

Middle use Gear set ？
Left and right sides use Coupling？
Is that so?

 

[A45xxxllx]

Thanks
veeeight

Middle use Gear set ？
Left and right sides use Coupling？
Is that so?

still？Just use one standard ？

 

[A45xxxllx]

No, because wet clutch packs has different requirements to final drive gears for slip.

Someone changed ，He uses it directly ，Already driven 17000 km No problem 。So I'm thinking ，Is it possible to calibrate ？
He used 75W-90.

 

[A45xxxllx]

Are you considering doing the change yourself. From what I saw on my first A45 it was a long 3 hour procedure and the A45s sounds even more delicate in the way it’s done.

Yep，Because the tools are complete ，That's the fun

 

[A45xxxllx]

You can do it at your own risk. But may not work successfully in all climates, temperatures, conditions and torque.

Yep，Because the original factory is 75W-85

 

[A45xxxllx]

Gear set - M-B 235.63 75W-80
Coupling - M-B 235.64 74W-70

This is what I found

 

[A45xxxllx]

M-B 235.15 is for W177 4MATIC rear axle, eg A250 4MATIC.

A45s with TWINster type e-clutch locking clutch packs is different. (4MATIC+, although that’s just a marketing term). M-B spec sheet says you need 235.63 and 235.64 for that.

In terms of just viscosity - they are very similar. But twin clutch pack needs specific properties for correct torque transfer and slippage, so I’m not sure 235.15 will deliver that under all conditions

So I need to try 😊

 

[A45xxxllx]

Good luck. Are you doing it yourself because you are below the required mileage for MB do it?

According to your driving style， track or Violent driving in advance ， vice versa

 

[A45xxxllx]

Might be one ridiculously expensive attempt if you get it wrong, or the oil you're attempting to use does not work the way it should, I hope you fully understand that.
I dare because someone has tried

Are you abusing your car and because of that, dealer will not accept to service it?

Can be replaced，Because the things given are the same

 

[A45xxxllx]

The A45’s on the W176 forum, when they first came out, were quite often run by real enthusiasts. I don’t know how many of them are still running or just running as front wheel drive.

Riders，Driving after replacement 17000km，I think it is feasible

 

[A45xxxllx]

Can be replaced，Because the things given are the same

Of course, it's safer to go to the dealer

 

[A45xxxllx]

Interesting in that they describe this oil as for use in BOTH transmissions AND hypoid rear axle assemblies.

I wonder on that basis, what Fuchs would say about their 75W-80.
Still trying to reach someone in Technical at Fuchs Australia.

Friends, I'm back . AMSOIL GL-5 75W-90,There are currently no issues.