BMW 760Li Rear Main Seal Replacement Cost

Know what price you should pay to get your vehicle fixed.

The average cost for a BMW 760Li rear main seal replacement is between $309 and $378. Labor costs are estimated between $264 and $333 while parts are priced at $45. Estimate does not include taxes and fees.
Note about price: This service is typically done as part of a bigger, more expensive repair, so the estimate you see above may not represent your total cost. Some of these bigger related repairs are listed in the table below. Talk with a RepairPal Certified shop to learn which repairs may be right for you.

How does the rear main seal work?

The crankshaft protrudes slightly from the rear of the engine block so that it can connect to the transmission. The rear main seal covers the end of the crankshaft to keep the oil inside the engine.

What are the symptoms related to a bad rear main seal?

When the rear main seal fails, you may see an oil stain on the ground where the vehicle is parked. The leak will appear to be coming from between the engine and the transmission, but over time it can coat the underside of the car near the engine. In extreme cases, the leaking oil will coat the flywheel, and can cause clutch slippage in vehicles with a manual transmission.

Can I drive with a rear main seal problem?

A bad rear main seal will typically leak oil. You can drive the car in this situation, but you'll need to check the oil and top it off more often.

Any oil leak, including a bad rear main seal, should be fixed, though, as it increases the risk of damaging the engine due to a low oil level. Damage to timing chain tensioners, camshaft bearings, crankshaft bearings and other lubricated components can be expensive to repair.

How often do rear main seals need to be replaced?

The lifespan of the rear main seal varies greatly, depending on the vehicle and driving conditions. The seal doesn't wear like a tire or a ball joint, but eventually the gasket's rubber will degrade. Due to its location, it can easily go unnoticed.

Rear Main Seal Replacement Cost Estimates

The average cost for a Rear Main Seal Replacement is between $309 and $378 but can vary from car to car.