Liqui Moly Top Tec ATF 1900

Liqui MolyLiqui Moly Top Tec ATF linegear and transmission

Low-viscosity ATF meeting MB 236.15, for the Mercedes-Benz 722.9 seven-speed automatic and the 724.2 hybrid transmission.

Classification
Product line Liqui Moly Top Tec ATF 13 oils
Intended use gear and transmission
Approvals
Meets the requirements of What an approval means
Typical properties
Viscosity at 40 °C 19 mm²/s
Viscosity at 100 °C 4.4 mm²/s
Viscosity index 148
Pour point -51 °C
Flash point 190 °C
Density 845 kg/m³
Pack sizes 1 L, 20 L, 60 L

The car maker has not officially approved the entries in the “Meets the requirements of” row.

Description

Liqui Moly Top Tec ATF 1900 is a low-viscosity fluid for Mercedes-Benz automatic gearboxes: the 722.9 seven-speed unit and the 724.2 hybrid transmission. The fluid is blue-green in colour.

It holds no official approval; according to the manufacturer, it meets the requirements of MB 236.15. Its use is confined to that specification, and the manufacturer gives no other recommendations.

Typical figures: 4.4 mm²/s at 100 °C, viscosity index 148, flash point 190 °C, pour point -51 °C. Available in 1, 20 and 60 litre packs.

Application

The Mercedes-Benz 722.9 seven-speed automatic gearbox and the 724.2 hybrid transmission, for which MB 236.15 fluid is specified.

Worth knowing

Type 722.9 alone does not determine the fluid: the Mercedes-Benz service bulletin for the USA and Canada splits these seven-speed gearboxes into two variants. Gearboxes built up to a cut-off date are assigned sheet 236.14, later ones 236.15, and those with engines outside the bulletin’s short list also 236.16; the hybrid 724.2 takes only 236.15. The bulletin calls the fluids of the two 722.9 variants incompatible: red for the early one, blue for the later one. It identifies the later gearbox by an oil pan 5 mm deeper with oval pressings, and by a green overflow tube.

For a gearbox that is assigned 236.14, the only fluid in this line with an official MB 236.14 approval is Top Tec ATF 1600: it is red and has 6.45 mm²/s at 100 °C against 4.4 mm²/s here. Top Tec ATF 1900 is blue-green by its data sheet, and Liqui Moly forbids mixing it with oils of other specifications. MB 236.15 itself appears in its line of recommendations, without a Mercedes-Benz approval; what makes such a line different from an approval is shown in the article on how to check the can’s wording against the carmaker’s list.

Data current as of Check the label and the current product data sheet before you buy.

Sources

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