Automatic Transmission
The Renault 25's least durable part was the automatic transmission. As a result, most of the 25's in service today are the 5-speed manual because only a few autos have survived. Three automatic transmissions were used on R25: MJ3, 4141, both 3-speed, and a new 4-speed AR4, later used on Safrane as AD4/AD8. The transmission itself was not that bad, but the poor quality and design of the ATF cooler, however, especially on the later AR4, resulted in this version gaining the title of possibly the worst automatic transmission ever designed. A leaking ATF cooler meant quick transmission death with little or no physical warning, except for ATF stains beneath the vehicle to which not all drivers paid attention or not quickly enough. The results were disastrous. The first transmissions started failing within a few years, that is, while the model was still in production. Renault then prepared a package that was to replace the original poor-quality cooler regardless of vehicle age and mileage. However, the fatal cooler location in front of the right wheel could not be changed. This is the reason why it is extremely difficult, if indeed possible, to find a Renault 25 Automatic with the AR4 transmission today.
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Famous quotes containing the word automatic:
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—Hannah Arendt (1906–1975)