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Details
| Specification | Value |
|---|---|
| Brand | MERTZ |
| MPN | m-s4257 |
| Fitting Position | Front Left |
| Fitting Position | Front Right |
| Inner Diameter [mm] | 21 mm |
OE numbers (4)
Search by this OE number to find compatible parts
- MERCEDES-BENZ—203 323 05 85
- MERCEDES-BENZ—203 323 21 85
- MERCEDES-BENZ—A203 323 05 85
- MERCEDES-BENZ—A203 323 21 85
Where this part fits
Original-fit position for OE 2033232185.
About this product
The MERTZ Mounting Stabiliser Bar (M-S4257) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Fitting Position: Front Left, Fitting Position: Front Right, Inner Diameter [mm]: 21 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit MERCEDES-BENZ models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 001-10-27620, 014 032 0206, 02.30.128, 035-00045 and 71 more. Matching these numbers confirms a like-for-like replacement with no loss of function. MERTZ is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (71)
Show all 71 OE numbers
Mounting Stabiliser Bar MERTZ M-S4257 — compatible car models
| Car models | MERCEDES-BENZ: C-CLASS Coupe (CL203), C-CLASS T-Model (S203), C-CLASS (W203), CLC-CLASS (CL203), CLK (C209), CLK Convertible (A209) |
|---|---|
| Engines | C 180 (203.735); C 180 Kompressor (203.246); C 180 (203.035); CLC 160 (203.731); CLK 200 CGI (209.343); CLK 200 Kompressor (209.442) |
| Year of manufacture | 2000-2011 |
| Manufacturer article number (MPN) | M-S4257 |
| OE part numbers | 203 323 05 85, 203 323 21 85, A203 323 05 85, A203 323 21 85 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MERTZ m-s4257 . Fitting Position: VL. Fitting Position: VR. Inner Diameter [mm]: 21 mm
- 1x Mounting Stabiliser Bar
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Mounting Stabiliser Bar compatible with my car?
This Mounting Stabiliser Bar fits MERCEDES-BENZ vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this MERTZ Mounting Stabiliser Bar have?
This MERTZ Mounting Stabiliser Bar has the following specifications: Fitting Position: VL; Fitting Position: VR; Inner Diameter [mm]: 21 mm. Check the full specifications table above for complete details.
What OE part numbers does this Mounting Stabiliser Bar replace?
This Mounting Stabiliser Bar replaces OE part numbers: 203 323 05 85, 203 323 21 85, A203 323 05 85, A203 323 21 85. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Mounting Stabiliser Bar cost?
This MERTZ Mounting Stabiliser Bar is available for £3.99. Mounting Stabiliser Bar prices vary depending on brand, specifications, and vehicle compatibility. MERTZ parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Mounting Stabiliser Bar?
Regular inspection of your Mounting Stabiliser Bar is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Mounting Stabiliser Bar?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Mounting Stabiliser Bar fitted by a professional mechanic.
Can I use this part as a replacement for OE 203 323 05 85?
Yes, this MERTZ Mounting Stabiliser Bar is a direct replacement for OE part number 203 323 05 85. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
