What model rear diff oil needs to be replaced ？75W-85？75W-90or75W-140？
A45s Rear Diff Noises, Oil and Oil Changes
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A45xxxllx
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I can tell you one thing. I never, ever ran into a single problem in my VW, everything was in stock, down to the tiniest consumable, at every dealership or the aftermarket. I knew every little thing going into the engine and everywhere else and this paranoia that I'm going through right now, dealership ordering by my VIN and yet selling me the incorrect oil, was just never a thing. Or waiting for four fucking plugs like it's some kind of rare sh1t developed in some secret government facility 500 feet underground. Had tons of options.It's not ideal the situation we collectively find ourselves in around this lubricant situation. I'm guessing from @fatty45, response to my diff oil MB used, it is not necessarily exactly correct but it's not possible to tell for sure but it's generically possible it is correct.
I would be interested in @Turbo Ed experience on this in Australia. Or have I missed it in the size of the post
The A45s is such a thrill, it really is incredible, but for my next car I think I'm going back home. Probably in the form of an Audi though.
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I have given up trying to second guess why dealers give out the parts/lubes they do! No idea why they thought 235.15 was correct for your car. Unless they have an instruction that says substitution is OK…….
M-B 235.64 is Shell TF 0870 B - which if you look at the description - is approved for Magna Powertrain:
Shell TF 0870 B 209 Liter
<strong>Shell TF 0870 B</strong><br /> Synthetisches Verteilergetriebeöl<br /> <br /> Shell TF-0870-B ist ein Hochleistungs-Getriebeöle für spezielle Verteilergetriebe von Magna Powertrain und Mercedes-Benz Hinterachsgetriebe nach MB 235.64
www.kreissler24.de
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Many thanks for your help. I have sent MB an inquiry, waiting for their response. You know, dealing with extremely difficult situations such as this, changing oils in your car, you have to double check and then triple check.
@Forrester et alIt's not ideal the situation we collectively find ourselves in around this lubricant situation. I'm guessing from @fatty45, response to my diff oil MB used, it is not necessarily exactly correct but it's not possible to tell for sure but it's generically possible it is correct.
I would be interested in @Turbo Ed experience on this in Australia. Or have I missed it in the size of the post
The only reason I have not been involved in this discussion recently, is that I thought I made my views clear, posts ago.
To reiterate and add slightly.
1) Never believe OEM's so called "service recommendation intervals".
2) OEM Dealerships in this country at least, are staffed by individuals who could not / can't get a job in the quality independent service industry.
3) After first service, (whenever that is specified) my vehicles are always serviced at quality independents, depending upon the brand. (In this country, they tend to specialize)
5) I specify the change intervals, brand and grades of lubricants used.
6) I use a local lubricant supplier where I can, as they have almost 100 years' experience in one of the world's harshest lubricant environments.
7) I have used their GL-5 (as @veeeight has been stating repeatedly) in the hypoid ring gear section of the rear axle assembly of all my vehicles for many years.
8) The two side clutch packs in our rear axle assembly are relatively rare in this country.
If you added all the MB and VAG variants using this tech here, I doubt it would total 1000 vehicles.
Consequently, the local lubricant supplier, at least the last time I checked, had not released their version of 235.64.
Which, again as @veeeight has been repeatedly stating, is the correct MB spec. for the side clutch packs and as far as I can see, for worldwide usage.
So, my independent workshop purchases the side clutch pack lubricant, (usually without trouble I should say), from our local MB dealership, which by pure coincidence is also from where the vehicle was sold.
Now, like @veeeight, I am also out of here.
They probably weren’t expecting such micro AI analysis 😎No no no! Stop! No more muddying!!!!
M-B Germany does not think 235.15 is the correct oil for A45s!!!!
The following Mercedes website is what M-B Germany thinks should go into the rear diff twin clutch coupling…..
See
Mercedes-Benz Operating Fluids
Publication platform for approved operating fluids from Mercedes-Benzoperatingfluids.mercedes-benz.com
@Theo you can show that website ^ to your dealer.
Scroll down till you find:
“Axle gear oils, sheet 235.64 for TWIN rear axle differential rear axle for coupling, model 177 and 118 with engine 139”
235.64
235.64
235.64
235.64
235.64
235.64
And as the Dragon’s say… “I’m out” 😂 😂
*In true Mercedes style, that sheet has an error as it talks about a 9-F DCT for the W177 model
Correct lubricant specification for a given application is not "micro analysis" it is prudent behavior.
Knowing only too well the cost of our gearbox, I hate to think of the cost of our rear axle assembly!!!
NOW gone!!
No aftermarket version of 235.64 in this country, to the best of my knowledge, which is precisely why my independent keeps buying it from the local MB Dealership.
In all my vehicles, this would be the first time I have had to do this in at least 40 years.
Are we going to see a post anytime soon that you’ve tuned your car 🤔Correct lubricant specification for a given application is not "micro analysis" it is prudent behavior.
Knowing only too well the cost of our gearbox, I hate to think of the cost of our rear axle assembly!!!
NOW gone!!
Turbine housing and exhaust manifold currently in LA, should be back early June at the latest.
Rods are due from Arrow around mid-June.
Head should be finished around the same time.
Then up to my Engine Builder.
If it is on the Dyno for Tuning sometime in August, I shall consider that the best possible outcome.
Won't surprise me if it turns out to be October.
Completely off topic, as was your query.
What to do when your "Daily" project turns out to be a total pain in the ***s?
Purchase a final year build Abarth 695, for which one can purchase, off the shelf hardware to achieve my 6 Lb /HP. (IE 400HP)
I don't know myself.
Like a kid in a toy shop!!
Mine was related to your keeping everything about the car in such excellent condition when will we see the end result. I might even be in LA if your engine is late 😁Completely off topic, as was your query.
What to do when your "Daily" project turns out to be a total pain in the ***s?
Purchase a final year build Abarth 695, for which one can purchase, off the shelf hardware to achieve my 6 Lb /HP. (IE 400HP)
I don't know myself.
Like a kid in a toy shop!!
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1,270 Posts
You mean cruise to LA.
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1,270 Posts
So if I can't find any aftermarket versions, and dealership can't get me the 235.64, I'll dump in the 235.15 which they claim is the correct oil and enjoy my rear differential for as long as it lasts. What else can I use, I can't pee in there can I?
I am in the UK from early September until mid-October, which may also impact upon when the A45s is actually on the Dyno.
NOW we are all seriously off topic!!
@veeeight will NOT be pleased,
MB sent you the oil so you can always litigate against them if anything goes wrong. But I doubt it will. Same as mine, which may well have had the same substitute.
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1,270 Posts
I hope you're right. And here's what I'm thinking...
If I understand it correctly, the .15 is the correct oil for the single clutch 4matic units, which means it's similar to the .64, it's not like it's entirely different. So I was thinking, since it's similar to the .64, meaning it doesn't have the required properties to cope with our highly demanding twin clutch differential, meaning there may be problems in the long run, perhaps changing it every year, as opposed to three years, will help maintain a degree of reliability similar to that of using .64 and changing it as per MB intervals.
Note your concern in an email before they use the oil.
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