BMW 3 Series Automatic Gearbox Fluid (ATF) Problems
Problems mentioning the Automatic Gearbox Fluid (ATF) on the BMW 3 Series
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What problems can be caused by a faulty Automatic Gearbox Fluid (ATF)?
Gearbox temperature warning light showing on dashboard
There is a light similar to the one pictured here showing up on the dashboard. Different manufacturers sometimes have slightly different warning light symbols but it should be similar to the one pictured.
Gearbox makes grinding sound
When changing gear the gearbox makes a loud grinding noise. This will be a more common occurrence on cars with manual gearboxes but can also happen with automatics. There can be various reasons for it but it always presents as a loud, unpleasant sound of mechanical scraping/grinding.
Gear changes are difficult
Changes between gears have become difficult, the gearstick no longer moves freely between gears, it sometimes seems to get stuck or won't go into a gear properly.