Urgent help wrong transmission fluid in car?

[ThomasC91]

Hi all,

I have a Volvo 2016 transmission 81tgs.

I had a transmission fluid change yesterday. Replaced 7 litres of fluid.

My invoice says they used Auto Trans D iii fluid. My understanding is that this is JWS 3309 fluid whereas I believe my transmission needs JWS 3324 fluid.

I'm not sure if it backwards compatible and whether it will be ok if anyone can advise?

Thank you.

This is what the data sheet says:

N306
Description
Benefits
· Primarily designed for GM DEXRON III application
· Long oil life
· Improves clutch durability
· Can be used as a power steering fluid
· Excellent protection against wear
· Low foaming tendencies
· Compatible with all elastomers and other sealing materials
· High thermal stability
· Backwards compatible to DEXRON IID applications
Specifications
Always check the owner’s manual for the correct oil specification to use.
· GM Dexron IIIH, IIIG, IID, TASA
· Allison C4
· Allison TES-389
· Mercedes-Benz MB-236.10, 9, 8, 7, 6, 5, MB-236.1
· Caterpillar TO-2
· MAN 339F, 339 V2 &Z1
· Voith 55.6335.xx
· Volvo 97341, 97340
· ZF TE-ML 02F, 03D, 04D, 09, 11A, 11B, 14A, 16L, 17C
Issue 01 - 05/2023 Page 1 of 2
Auto-Trans D III is a semi synthetic multi-purpose automatic transmission fluid for commercial and automotive
vehicles.

Color Viscosity @ 100⁰C Viscosity @ 40⁰C Viscosity Index Viscosity @ -40⁰C Pour Point Specific gravity Flash Point Method Visual ASTM D-445 ASTM D-445 ASTM D-2270 Unitmm2/s mm2/smPa.s Value Red 5,8 27,6 160 9773,0 ASTM D-5294 ASTM D-5950 ASTM D-4052 ASTM D-92 Health and Safety ⁰C⁰C-54 0,843 212

[Olivergt]

Go back to the garage that did the change and ask them.

That's going to be your best option.

Alternatively, check with Volvo or the makers of the Trans fluid.

[chris1roll]

I'd say that needs to come out, right away.

Personal experience - fully rebuilt AW gearbox in our XC70, no idea what they filled it with but they had it back and rebuilt two further times due to severe and prolonged torque converter shudder.

I fixed it myself (after asking myself, "could they really be that stupid?") by filling with the correct JWS3309 fluid.
What came out was jet black after just a few k while the correct stuff is staying red.

Dexron III as per the spec sheet you copied, is defintely not a suitable substitute, and in no way is it equivalent to JWS3309 or higher. I put it in the 3spd+OD box in my 1989 740.