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D2 - Transmission Gearboxes, diffs, drive shafts.

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  #21  
Old 15th July 2017, 12:44 PM
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David's8 David's8 is offline
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Lifeguard 5 is described on the ZF site as "Light Brown" but i have noted that many of the other ATF oils which state they meet the same specs are red.
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  #22  
Old 15th July 2017, 12:56 PM
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...and an interesting quote from the ZF document TE-ML_11 reference ATFs and the issue "maintenance free" issue .

"ZF 5-, 6-, 8- and 9-speed as well as the ZF 4HP20 automatic transmissions are filled maintenance-free with specially developed partially synthetic ATF oils. Maintenance-free fills are intended for normal operating conditions. Especially driving at very high operating temperatures can result in accelerated aging or increased wear of ATF oils. In case of above-average operating conditions, such as:
- frequent freeway driving in the upper speed range
- offensive, sporty driving style
- frequent trailer operation
it is recommended to refresh (change) the oil of the automatic transmission every 100,000 km or no later than after 8 years.
In each case, only released ATF oil may be used for oil changes. And oil changes must be performed in accordance with therelevant specifications
."
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  #23  
Old 15th July 2017, 09:57 PM
MikkiJayne MikkiJayne is offline
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Short of very expensive chemical analysis there's not really any way to tell whats in it, and I've only used genuine fluid so have never seen any red variants of it to compare. The genuine stuff has a distinctive smell too, whereas this red stuff is has no distinguishing features. I'll just re-fill with genuine and go from there.

Its rather odd that the TC was supposedly rebuilt at the same time as the gearbox and has failed after only a couple of years.
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  #24  
Old 23rd July 2017, 12:41 PM
MikkiJayne MikkiJayne is offline
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I just opened this second gearbox up to do the filter and re-seal the sump. While there may be red ATF which conforms to the spec, in 100% of two cases, it is indicative of other heinous bodging. In my case, sticking the sump on with bathroom sealant. In this one, forgetting the o-ring on the filter



They also appear to have lost one of the bolts for the filter so used whatever they had kicking around which was much longer than it should be, and did the same on the sump Now I probably have to pull the valve body to make sure the over-size bolt didn't crack it.



Oh, and also the wrong oil in the diffs too. After only 2 years it's as black as treacle so it looks like they used GL4, not GL4+.
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