Name: BMW Crankshaft rear seal/rear main oil leak repair
Brand: AutoGuru
Rating: 5.0 (1 reviews)

Frequently Asked Questions

Once you fill out your details, you’ll be shown the ‘search results’ which displays instant fixed-price quotes from local service providers that can be booked online.

Yes. Once you have entered in your vehicle details and location, you’ll be able to browse through available repair tasks or inspections that you would like a quote for.

Car servicing, inspections and minor repairs such as brakes can be instantly quoted and booked online. For complex repairs, we’ll get local service providers to give you a personalised quote.

Nope! Customers who book with AutoGuru pay no fees.

AutoGuru can provide servicing and repair quotes for the majority of passenger vehicles on Australian roads. If you don’t see your vehicle listed, we’re really sorry but at this time we don’t have sufficient details on this vehicle type to provide you with quotes. Please try us again in the future though, as we are always updating our vehicle listings!

Yes. For the work included in the quote, the price you’re quoted is the final price you’ll pay.

Instantly priced quotes for servicing and repair work via AutoGuru.com.au include parts, labour and GST. Note: Quotes for inspection and diagnostic jobs do not include pricing for parts.

Service providers are advised to contact you directly in order to discuss additional work that is not included in the initial quote.

Inclusions for basic and logbook services can be found on the search results page or the booking finalise page under the ‘What’s included?’ button. Find out more

Yes! You can book with a mobile service provider that can come to your home or workplace. Find out more

No. The Australian Competition & Consumer Commission (ACCC) states that any certified mechanical workshop or mobile mechanic can service or repair your car without voiding your New Car Manufacturers Warranty. Find out more

Yes. For logbook services, the service provider will sign and stamp your logbook to meet manufacturer requirements. If the service provider has not stamped your logbook, please contact them directly to arrange a time for them to stamp your logbook.

Yes. Please click the 'manage my booking' link on your booking confirmation email. If you need help email contactus@autoguru.com.au.

If you booked through AutoGuru and your booking has been confirmed, you can reschedule to a new date or time. Simply click the 'manage my booking' link on your booking confirmation email. If you need help email contactus@autoguru.com.au. If you cancel or don't show up and don't reschedule (and you have prepaid in advance), a $20 cancellation fee will apply.

If you’ve booked with a workshop, the service provider will usually require your vehicle for the entire day due to scheduling. If you’ve booked with a mobile provider, you will only be without your vehicle for the time it takes to complete the job. Find out more

Yes! Some service providers can offer a loan car depending on their availability. Find out more

Most service providers also offer either a drop off or pick up service, where they can drop you off at or pick you up from a location within a 5km radius of their business, or a $10 Uber ride voucher. Find out more

For servicing, inspections and select repairs, we can provide instant quotes. However, some tasks require a quote request to be sent to service providers. You will usually receive at least one quote within 24 hours.

If you have sent off a quote request to local service providers through AutoGuru, you can expect to receive up to five quotes back.

Didn’t receive a quote? No worries! Email contactus@autoguru.com.au and we'll see if we can help.

Booking your car service or repair through AutoGuru gives you access to these convenient payment options:

1. Pay upfront and online using your credit or debit card or PayPal
2. Flexible payment options with Afterpay, humm, Zip or PayPal
3. In some instances, you can choose to pay the mechanic when you pick your car up and the service and/or repairs have been completed

Yes, all service providers should provide an invoice when you pick up the car. Find out more

Do BMW Crankshaft Rear Seal/Rear Main Oil Leaks Need to Be Repaired?

The crankshaft is the main driving force in an internal combustion engine (ICE). If your BMW is an ICE then it will have a crankshaft and rear seals.

At the bottom of your engine, the crankshaft is working with the pistons and connecting rods to harness the energy of combustion. This energy spins the crankshaft, which provides drive to the transmission and down to the wheels.

It sits low inside the engine block, usually just above the oil pan (also known as the sump) and counterweights splash oil to lubricate the main bearings.

Because the transmission and crankshaft pulley is driven by the crankshaft, a front and rear oil seal are needed to separate the inside and outside of the BMW's engine.

This seal is usually made up of natural or synthetic rubber and is supplemented by a metal ring on the outside. The seal is held in place by a thin spring which keeps tension on the rubber against the end of the crankshaft.

This keeps the oil in and dirt and debris out. Over time, these seals can perish and start to leak oil. There is no set time replacement interval for these seals, so they need to be replaced when they are leaking.

Time, heat and poor engine oil quality are all factors that contribute to rear main seal failure and once it starts to leak it will need to be replaced. When the seal fails you may notice oil leaking between the engine and transmission, a puddle of oil on the floor/ground and/or low oil level.

A BMW crankshaft rear seal/rear main oil leak repair includes a lot of labour, as the transmission needs to be removed from the vehicle to allow access to the rear main seal.

If the engine oil has leaked onto the clutch friction material, it should be replaced to minimise the risk of premature failure. Also, oil leaks can mimic a rear main seal leak, such as a sump gasket leak. The correct diagnosis will prevent unnecessary repairs.

Replacing your crankshaft rear seal as soon as it starts leaking will ensure that your BMW is in safe operating condition and less likely to break down unexpectedly.

If the oil level drops due to a leak, excessive damage to the engine can occur, often leading to a full engine rebuild or needing to replace the vehicle. Clutch damage can also occur due to oil contamination.

When your BMW crankshaft rear seal develops a leak and needs to be replaced, that’s when your friends from AutoGuru can help!

Frequently Asked Questions

BMW Crankshaft rear seal/rear main oil leak replacement

BMW Crankshaft rear seal/rear main oil leak replacement

Do BMW Crankshaft Rear Seal/Rear Main Oil Leaks Need to Be Repaired?

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