BC Racing RM Series Coilovers for 2020-2026 Mercedes-Benz GLB Class 4Matic AWD (X247)
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Product Highlights

1-Way
1-Way

Adjustment Type

30 Levels
30 Levels

Damping Adjustment

1-2"
1-2"

Drop Amount

Yes
Yes

Rebuildable

BC Racing

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SKU: J-59-RM-MA

BC Racing RM Series Coilovers for 2020-2026 Mercedes-Benz GLB Class 4Matic AWD (X247)

$1,495.00

MSRP $1,615.00 You save $120.00

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Built to Order (about 4-5 weeks)

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Fitment Notes

All suspension is designed to lower the vehicle. Factory ride height cannot be achieved for most applications.

All BC Racing suspension fits 2WD vehicles unless specified AWD. Notes regarding electronic damping (EDC, DDS, etc.) pertain to physical fitment only.

BC Racing coilovers DO NOT interface w/ OEM electronic damping control systems. Additional parts may be needed to remove error codes if electronics exist with the OEM suspension.

Pillowball Mounts do not mean Camber Plates. Pillowball refers to the type of bushing.

Product images may not represent the actual SKU.

Shipping Time

In-Stock: 1-2 business days
Products that are in-stock and do not require customization usually ship the same business day if ordered before 2pm ET. Orders placed after 2pm ET will ship the following business day. 

Out of Stock: 3-6 weeks
Products that are out of stock have an average lead time of 3-6 weeks.

Custom Builds: 3-6 weeks
Custom builds vary in time based on the options selected and available parts. Custom builds include any combination of the following options.

  • Extreme Low
  • DS/ER/RM/HM/ZR/ZX Series
  • Custom Spring Rates
  • Swift Springs
  • Top Mounts

Out of Stock (Swift Springs): 1-3 months
If Swift Springs are out of stock, the wait time can be about 1-3 months. Please ask for an ETA prior to ordering.

2-Year Warranty

BC Racing North America offers a two-year warranty against manufacturing defects. All warranty claims must be submitted directly to BC Racing North America.

More Details

Product Highlights

1-Way
1-Way

Adjustment Type

30 Levels
30 Levels

Damping Adjustment

1-2"
1-2"

Drop Amount

Yes
Yes

Rebuildable

Product Details

BC Racing RM Series Coilovers for the 2020-2026 Mercedes-Benz GLB Class 4Matic (X247) are built around an inverted mono-tube damper, putting the larger-diameter body at the top of the strut for greater bending stiffness under load. It is the choice for cars that see serious track time.

The inverted design reduces stiction and improves damper stability under high cornering loads. Ride height stays adjustable independent of spring preload, and Swift Springs or custom valving can be specified at checkout.

BC Racing has been manufacturing adjustable coilovers since 2004 and is one of the most popular coilover brands in the automotive tuning industry for a reason: competitive pricing, deep customization, proven reliability, and a fully rebuildable damper design. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts, and in-house tech support from both BC Racing and the Springrates team.

Features

  • 30-level simultaneous compression/rebound damping adjuster
  • Inverted mono-tube damper for greater bending stiffness
  • Ride height adjustable independent of spring preload
  • Upper mount hardware varies by chassis. See the Specifications table for what is included on your kit.
  • Swift Spring and custom spring rate upgrades available at checkout
  • Custom damper valving paired with custom spring rates on request
  • Fully rebuildable, with replacement parts available from BC for the life of the shock
  • 2-year manufacturer warranty against defects
Specifications
Part Number J-59-RM
Part Name RM Series Coilovers
Vehicle 2020-2026 Mercedes-Benz GLB Class 4Matic
Drivetrain AWD
Chassis Code X247
Spring Rate - Front 7 kg/mm
Spring Rate - Rear 6.5 kg/mm
Ride-Height Adjustable Yes
Vehicle Fitment
  • 2020 Mercedes-Benz GLB Class 4Matic AWD (X247)
  • 2021 Mercedes-Benz GLB Class 4Matic AWD (X247)
  • 2022 Mercedes-Benz GLB Class 4Matic AWD (X247)
  • 2023 Mercedes-Benz GLB Class 4Matic AWD (X247)
  • 2024 Mercedes-Benz GLB Class 4Matic AWD (X247)
  • 2025 Mercedes-Benz GLB Class 4Matic AWD (X247)
  • 2026 Mercedes-Benz GLB Class 4Matic AWD (X247)

Customer Reviews

Questions & Answers

FAQs

Please read our FAQs page to find out more.

How much will BC Coilovers lower my car?

On average, Standard Drop allows about 1-2 inches of drop range below factory ride height. Extreme Low allows about 2-3 inches of drop.

Can BC Coilovers achieve factory ride height?

No. In most cases, factory ride height cannot be achieved.

What is a custom build vs off-the-shelf kit?

The stock level displayed on our website reflects the availability of standard “off-the-shelf” kits, unless noted otherwise in the product description. Selecting any custom options—such as Extreme Low, custom spring rates, Swift Spring upgrades, or top mount changes—will result in a custom-built kit. Please note: all series except the BR Series are built to order, with the exception of select popular DS Series kits that may be in stock. Also, some popular Extreme Low kits are in stock as well. To identify these, look for "Extreme Low" in the product title.

Will the struts be valved correctly?

Yes! The shocks and/or struts are always valved to match the spring rates you choose during a custom build. There is no additional cost.

Can they be rebuilt?

Yes, all BC Racing Coilovers can be rebuilt by purchasing individual replacement parts. For example, if a strut leaks, you can simply replace the shock cartridge.

Is there rush shipping available?

Rush shipping is not offered, but all in-stock kits ship very fast— most by the next day.

Customizing the coilovers in any way will delay the shipment by a few weeks on average.

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