![]() WHAT CAN GO WRONG Extreme high operating temperatures can cause thermal breakdown of the differential fluid leading to a loss of lubrication and deposit formation. A vehicle can have two different differentials including front differential and rear differential. This kit fits most E30, E36, E46, E28, E34, E39, E24, E23, E32, E38, E31, Z3, and E85/E86 Z4 models.įits models with open differential or factory limited slip differential.įor full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 87. WHAT DOES IT DO Differentials deliver power from the transmission to the wheels. See below for BimmerWorld recommended related items. A vehicle with rear-wheel drive has a rear differential that sits between the rear wheels and connects to the transmission through the drive shaft. ![]() The Jiffy Lube Differential Service replaces the old, depleted fluid. We also offer a Motive Power Filler Transfer Pump to make the differential refill quick and easy. The differential fluids job is to lubricate gears, bearings, and shafts in this system. Our kit includes 2 Quarts of Red Line 75W90 synthetic gear oil and 2 original BMW sealing drain/fill plugs, so you'll have exactly what you need to get the job done. On the other hand, the cost of a difficult repair like rebuilding or overhauling the differential is anywhere between 720 and 1,110. The rear differential service is a simple DIY maintenance task, requiring only a simple drain and fill. Expect to spend anywhere between 210 and 550 for a light repair of the front-engine rear-wheel drive, such as replacing the oil seal causing a leak. It is a messy job, and should be done by a licensed mechanic. ![]() BimmerWorld recommends replacing the rear differential fluid every 50,000 miles on a street-driven car. Most manufacturers recommend that the differential fluid be changed every 30,000 to 60,000 miles. BMW will have you believe that the differential fluid is a maintenance-free "lifetime" item, but we disagree.
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