Genuine BMW
Genuine BMW BMW G09 XM OEM Rear Brake Discs/Rotors Pair
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Pay in 3 interest-free instalments
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No interest. No fees. No impact to your credit score.
- A new way to pay that's an alternative to a credit card.
- 3 instalments gives you flexibility to shop without interest or hidden fees. - Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort.
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Review your latest purchases and make payments in the Klarna app or online.
● Download the Klarna app: https://www.klarna.com/app
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With Klarna, you are always covered through Klarna’s Buyer Protection policy. Modern safeguards protect your information to prevent unauthorized purchases.Frequently asked questions
Visit our FAQ (https://www.klarna.com/uk/customer-service/) page to find out more about using Klarna.About Klarna
At Klarna, we have a relentless focus on creating the best shopping experience in the world. We believe payments are so much more than just a way to send money. That’s why our smooth checkout options give you more time and control so you can focus on the things you love.● More than 90 million shoppers are using Klarna.
● 200,000 retailers are working with us worldwide.
● We’re one Europe’s largest banks and we’ve been powering online checkouts for over 15 years.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
R44 Performance Ltd. is not a lender and acts only as an introducer. The credit product is provided by Klarna Bank AB (publ). Credit is only available to permanent UK residents aged 18 and over, depending on their status. Terms and conditions apply. Please note that Pay in 30 days and Pay in 3 instalments are not regulated by the FCA.
Choose options
BACKORDER - AVAILABLE
Pay later options
Spread the cost of your order. Choose your provider at checkout — nothing to set up here.
KLARNA FINANCE
Part 1: How it works
Shop now. Pay later with Klarna.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
Step 1: Add products to your cart and select “Klarna” when you check out
Step 2: Enter a few personal details and you’ll know instantly if you’re approved
Step 3: Klarna will send you an email confirmation and reminders when it’s time to pay and you can manage your orders and payments in the Klarna app.
Part 2: Payments information
Pay in 30 days
Make your purchase today so you can try before you buy. Only pay for what you keep. Pay up to 30 days later. No interest. No fees. No impact to your credit score.
Paying after delivery allows you to try before you buy and is the easiest way to shop online.
- Complete the payment in full after purchase at no added cost.
- Report returns directly in our app and only pay for the items that you keep.
- Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort
You must be 18+ and a UK resident to be eligible for this credit offer. Pay Later Terms and Conditions
Pay in 3 interest-free instalments
Spread the cost of your purchase into 3 interest-free instalments. The first payment is made at point of purchase, with remaining instalments scheduled automatically every 30 days. No interest or fees. Select the Klarna option and enter your debit or credit card information. To check your eligibility, Klarna will perform a soft search with a credit reference agency. This will not affect your credit score.
No interest. No fees. No impact to your credit score.
- A new way to pay that's an alternative to a credit card.
- 3 instalments gives you flexibility to shop without interest or hidden fees. - Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort.
You must be 18+ and a UK resident to be eligible for this credit offer. Pay in 3 Terms and Conditions
Part 3: About Klarna
Pay online or in the app
Review your latest purchases and make payments in the Klarna app or online.
● Download the Klarna app: https://www.klarna.com/app
● Log in online: https://app.klarna.com/login
● Chat with customer service: https://www.klarna.com/uk/customer-service/
Safe and secure
With Klarna, you are always covered through Klarna’s Buyer Protection policy. Modern safeguards protect your information to prevent unauthorized purchases.Frequently asked questions
Visit our FAQ (https://www.klarna.com/uk/customer-service/) page to find out more about using Klarna.About Klarna
At Klarna, we have a relentless focus on creating the best shopping experience in the world. We believe payments are so much more than just a way to send money. That’s why our smooth checkout options give you more time and control so you can focus on the things you love.● More than 90 million shoppers are using Klarna.
● 200,000 retailers are working with us worldwide.
● We’re one Europe’s largest banks and we’ve been powering online checkouts for over 15 years.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
R44 Performance Ltd. is not a lender and acts only as an introducer. The credit product is provided by Klarna Bank AB (publ). Credit is only available to permanent UK residents aged 18 and over, depending on their status. Terms and conditions apply. Please note that Pay in 30 days and Pay in 3 instalments are not regulated by the FCA.
BACKORDER - AVAILABLE
Pay later options
Spread the cost of your order. Choose your provider at checkout — nothing to set up here.
KLARNA FINANCE
Part 1: How it works
Shop now. Pay later with Klarna.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
Step 1: Add products to your cart and select “Klarna” when you check out
Step 2: Enter a few personal details and you’ll know instantly if you’re approved
Step 3: Klarna will send you an email confirmation and reminders when it’s time to pay and you can manage your orders and payments in the Klarna app.
Part 2: Payments information
Pay in 30 days
Make your purchase today so you can try before you buy. Only pay for what you keep. Pay up to 30 days later. No interest. No fees. No impact to your credit score.
Paying after delivery allows you to try before you buy and is the easiest way to shop online.
- Complete the payment in full after purchase at no added cost.
- Report returns directly in our app and only pay for the items that you keep.
- Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort
You must be 18+ and a UK resident to be eligible for this credit offer. Pay Later Terms and Conditions
Pay in 3 interest-free instalments
Spread the cost of your purchase into 3 interest-free instalments. The first payment is made at point of purchase, with remaining instalments scheduled automatically every 30 days. No interest or fees. Select the Klarna option and enter your debit or credit card information. To check your eligibility, Klarna will perform a soft search with a credit reference agency. This will not affect your credit score.
No interest. No fees. No impact to your credit score.
- A new way to pay that's an alternative to a credit card.
- 3 instalments gives you flexibility to shop without interest or hidden fees. - Not making your payment on time could affect your ability to use Klarna in the future.
- Debt collection agencies are used as a last resort.
You must be 18+ and a UK resident to be eligible for this credit offer. Pay in 3 Terms and Conditions
Part 3: About Klarna
Pay online or in the app
Review your latest purchases and make payments in the Klarna app or online.
● Download the Klarna app: https://www.klarna.com/app
● Log in online: https://app.klarna.com/login
● Chat with customer service: https://www.klarna.com/uk/customer-service/
Safe and secure
With Klarna, you are always covered through Klarna’s Buyer Protection policy. Modern safeguards protect your information to prevent unauthorized purchases.Frequently asked questions
Visit our FAQ (https://www.klarna.com/uk/customer-service/) page to find out more about using Klarna.About Klarna
At Klarna, we have a relentless focus on creating the best shopping experience in the world. We believe payments are so much more than just a way to send money. That’s why our smooth checkout options give you more time and control so you can focus on the things you love.● More than 90 million shoppers are using Klarna.
● 200,000 retailers are working with us worldwide.
● We’re one Europe’s largest banks and we’ve been powering online checkouts for over 15 years.
Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.
R44 Performance Ltd. is not a lender and acts only as an introducer. The credit product is provided by Klarna Bank AB (publ). Credit is only available to permanent UK residents aged 18 and over, depending on their status. Terms and conditions apply. Please note that Pay in 30 days and Pay in 3 instalments are not regulated by the FCA.
Replace the rear brake rotors on your BMW G09 XM with this pair of Genuine BMW OEM Rear Brake Discs, measuring 398 x 28mm and supplied as a complete set of two for the rear axle.
Unlike the XM's front brake discs, which use separate left and right part numbers, the rear brake discs are not handed. BMW part number 34208840356 is used on both the left and right sides of the vehicle, with two identical discs required per car.
This package therefore contains two Genuine BMW 34208840356 rear brake discs, providing everything required to replace both rear rotors during a complete rear brake service.
Manufactured to BMW's original specification for the G09 XM, these discs provide the correct dimensions and fitment for the corresponding factory braking system.
Key Features
- 100% Genuine BMW OEM rear brake discs
- Designed for the BMW G09 XM
- BMW part number 34208840356
- Large 398 x 28mm rear brake rotors
- Complete pair for the rear axle
- Non-handed design
- Same brake disc used on left and right sides
- Two identical discs supplied
- Direct replacement for the corresponding factory rotors
- Designed for the original BMW XM braking system
- Ideal for routine servicing and brake replacement
- Genuine BMW manufacturing quality
Genuine BMW 398mm Rear Brake Discs
The BMW G09 XM uses substantial 398 x 28mm rear brake discs as part of its factory braking system.
At 398mm in diameter, the rear rotors reflect the considerable braking requirements of the XM platform, complementing the even larger front brake setup.
When the original discs become worn or damaged, Genuine BMW 34208840356 provides the corresponding OEM replacement.
This product is supplied as a pair, allowing both sides of the rear axle to be serviced at the same time.
Non-Handed Rear Brake Disc Design
An important distinction between the G09 XM's front and rear brake discs is their left/right configuration.
The front axle uses separate left and right brake disc part numbers. The rear axle does not.
BMW rear brake disc 34208840356 is non-handed, meaning exactly the same component is installed on both sides of the vehicle.
The rear axle configuration is therefore:
| BMW Part Number | Position | Disc Size | Quantity Per Car |
|---|---|---|---|
| 34208840356 | Rear Left | 398 x 28mm | 1 |
| 34208840356 | Rear Right | 398 x 28mm | 1 |
Total required: 2 x 34208840356
This product contains both discs required for a complete rear axle replacement.
Designed for the BMW G09 XM
These rear brake rotors are Genuine BMW components designed for compatible G09-generation BMW XM applications.
The XM combines very high power outputs with substantial vehicle mass, placing considerable demands on its braking system. The large 398mm rear discs work as part of the complete factory braking package to provide the braking performance required by the platform.
Using Genuine BMW replacement discs allows the original braking system to be maintained using components manufactured to the intended BMW specification.
Direct OEM Replacement
BMW part number 34208840356 is designed as a direct replacement for the corresponding original G09 XM rear brake disc.
Each disc measures:
Diameter: 398mm
Thickness: 28mm
Because the component is non-handed, there is no separate left or right variant to identify during installation. Two examples of the same BMW part number complete the rear axle.
This makes the pair suitable for:
- Routine BMW XM brake servicing
- Worn rear brake disc replacement
- Replacement of damaged rear rotors
- BMW specialist workshop servicing
- Accident repair
- Owners maintaining their XM with Genuine BMW components
Replace Both Rear Brake Discs Together
Brake discs on the same axle should generally be replaced as a pair, helping maintain consistent braking characteristics across both sides of the vehicle.
For the G09 XM, this means fitting:
1 x 34208840356 – Rear Left
1 x 34208840356 – Rear Right
This package already contains two Genuine BMW discs, providing the complete rear axle set in a single product.
The condition of the rear brake pads and associated braking components should also be checked when replacing the discs.
When Should BMW XM Rear Brake Discs Be Replaced?
Brake disc wear depends heavily on mileage, driving style, road conditions and how the vehicle is used.
Replacement may become necessary due to:
- Brake disc wear
- Reaching the specified minimum thickness
- Excessive scoring or surface damage
- Heat-related damage
- Cracking or physical damage
- Brake vibration associated with the rotor
- Damage caused by excessively worn brake pads
The braking system should be inspected during routine servicing, with disc condition and thickness checked against BMW specifications.
Rather than relying on mileage alone, the physical condition and measured thickness of the rotor should determine whether replacement is required.
Genuine BMW Brake Components
Brake components need to operate correctly as a complete system, making correct fitment and specification particularly important.
Choosing Genuine BMW rear brake discs provides:
- Correct 398 x 28mm dimensions
- Correct vehicle-specific application
- Compatibility with the corresponding factory brake system
- Direct OEM replacement
- Genuine BMW manufacturing specification
- Correct non-handed design
- Original BMW part number
For an XM retaining its original brake configuration, these rotors provide the Genuine BMW solution when the rear discs require replacement.
Pair With Genuine BMW Front Brake Discs
For vehicles undergoing more extensive brake servicing, R44 Performance also offers the corresponding Genuine BMW G09 XM front brake discs.
The front axle uses larger 420 x 40mm discs and, unlike the rear, uses separate left and right components:
Front Left: 34108840339
Front Right: 34108840340
The rear axle uses:
Rear Left & Right: 34208840356
Size: 398 x 28mm
Quantity Required: 2
Together, these components allow the XM's brake rotors to be replaced using Genuine BMW parts.
Compatibility
Designed for compatible:
- BMW G09 XM
Brake Disc Size: 398 x 28mm
Position: Rear Axle
BMW Part Number: 34208840356
Handed: No
Quantity Required Per Vehicle: 2
Quantity Supplied: 2
As brake specifications can vary according to vehicle configuration and production date, we recommend confirming compatibility using your VIN and BMW part number 34208840356 before ordering.
Product Specifications
Manufacturer: Genuine BMW
Product: Rear Brake Disc / Rotor Pair
Vehicle: BMW G09 XM
Position: Rear Axle
Disc Diameter: 398mm
Disc Thickness: 28mm
Disc Size: 398 x 28mm
BMW Part Number: 34208840356
Quantity: 2
Handed: No
Left/Right Specific: No – same disc used on both sides
Installation: Direct OEM Replacement
Product Type: Replacement Brake Discs / Rotors
Professional Installation Recommended
Due to the safety-critical nature of the braking system, these Genuine BMW rear brake discs should be installed by a BMW specialist or suitably qualified technician.
During installation, the technician should also inspect the condition of the:
- Rear brake pads
- Brake calipers
- Brake hardware
- Brake hoses and lines
- Parking brake-related components
- Remaining braking system
Any worn or damaged components can then be identified and replaced as required.
Why Choose Genuine BMW XM Rear Brake Discs?
The G09 XM places substantial demands on its braking system, making correct brake component specification particularly important.
Genuine BMW rear brake discs provide a straightforward replacement for the factory rotors without changing the original braking configuration.
Key benefits include:
- 100% Genuine BMW components
- Specifically intended for compatible G09 XM applications
- Correct 398 x 28mm dimensions
- Non-handed design
- Same BMW part number for left and right
- Complete pair supplied
- Direct replacement for the original rear discs
- Retains the corresponding factory brake system specification
For owners maintaining their XM using original BMW components, these discs provide the appropriate OEM solution for a rear rotor replacement.
Why Buy From R44 Performance?
R44 Performance specialises in BMW G09 XM parts, Genuine BMW replacement components, brake parts and servicing products, with an extensive range available for the latest BMW M platforms.
When you purchase your Genuine BMW G09 XM Rear Brake Disc Pair from R44 Performance, you'll benefit from:
- 100% Genuine BMW OEM brake discs
- Complete rear axle pair
- Two Genuine BMW 34208840356 rotors supplied
- Specialist BMW G09 XM product knowledge
- Support with BMW part number and vehicle compatibility
- Complementary Genuine BMW front brake discs and servicing components available
- Fast UK and worldwide shipping
- Secure packaging for heavy braking components
- Dedicated customer support before and after purchase
For a BMW G09 XM requiring replacement rear brake rotors, this pair of Genuine BMW 398 x 28mm Rear Brake Discs 34208840356 provides the correct OEM solution, with two identical non-handed discs supplied for the complete rear axle.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.