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Details
| Specification | Value |
|---|---|
| Brand | MERTZ |
| MPN | m-s4145 |
| Category | bushing, control/trailing arm |
| Fitting Position | Front |
| Fitting Position | Rear Left |
| Fitting Position | Rear Right |
| Thickness [mm] | 64 mm |
| Inner Diameter [mm] | 12 mm |
| Outer Diameter [mm] | 59 mm |
| Outer Diameter [mm] | 61.5 mm |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- AUDI / SEAT / SKODA / VW—1K0 505 541 B
- AUDI / SEAT / SKODA / VW—1K0 505 541 C
- AUDI / SEAT / SKODA / VW—1K0 505 541 D
Where this part fits
Original-fit position for OE 1K0505541B. The red ring marks where this part installs on the vehicle.
About this product
The MERTZ bushing, control/trailing arm (M-S4145) 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, Fitting Position: Rear Left, Fitting Position: Rear Right, Thickness [mm]: 64 mm, Material: 43. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit AUDI, SEAT, SKODA, VW 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: 001-10-18244, 00720886, 00729192, 017-00453 and 125 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (126)
Show all 126 OE numbers
bushing, control/trailing arm MERTZ M-S4145 — compatible car models
| Car models | AUDI: A1 (8X1, 8XK), A1 Sportback (8XA, 8XF), A3 (8P1), A3 Convertible (8P7), A3 Sportback (8PA), Q3 (8UB, 8UG), TT (8J3), TT Roadster (8J9); SEAT: ALTEA (5P1), ALTEA XL (5P5, 5P8), LEON (1P1), TOLEDO III (5P2); SKODA: OCTAVIA I (1U2), OCTAVIA I Combi (1U5), OCTAVIA II (1Z3), OCTAVIA II Combi (1Z5), SUPERB II (3T4), SUPERB II Estate (3T5), YETI (5L); VW: EOS (1F7, 1F8), GOLF PLUS V (5M1, 521), GOLF PLUS Van (521), GOLF V (1K1), GOLF VAN VI Variant (AJ5), GOLF VI (5K1), GOLF VI Convertible (517), GOLF VI Van (5K1), GOLF VI Variant (AJ5), GOLF V Variant (1K5) (+1 more) |
|---|---|
| Engines | 2.0 TFSI quattro; S1 quattro; 1.2 TSI; 1.2 TFSI; 1.4 TSI; 1.8 TFSI; 1.4 16V; 1.9 TDI; 1.2 TSi; 1.4 |
| Year of manufacture | 1996-2020 |
| Manufacturer article number (MPN) | M-S4145 |
| OE part numbers | 1K0 505 541 B, 1K0 505 541 C, 1K0 505 541 D |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
MERTZ m-s4145 bushing, control/trailing arm. Fitting Position: HL. Fitting Position: HR. Fitting Position: V. Inner Diameter [mm]: 12 mm. Material: 43. Outer Diameter [mm]: 59 mm. Outer Diameter [mm]: 61,5 mm. Thickness [mm]: 64 mm
- 1x bushing, control/trailing arm
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- 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 bushing, control/trailing arm compatible with my car?
This bushing, control/trailing arm fits AUDI, SEAT, SKODA, VW 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 bushing, control/trailing arm have?
This MERTZ bushing, control/trailing arm has the following specifications: Fitting Position: V; Fitting Position: HL; Fitting Position: HR; Thickness [mm]: 64 mm; Material: 43; Inner Diameter [mm]: 12 mm. Check the full specifications table above for complete details.
What OE part numbers does this bushing, control/trailing arm replace?
This bushing, control/trailing arm replaces OE part numbers: 1K0 505 541 B, 1K0 505 541 C, 1K0 505 541 D. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a bushing, control/trailing arm cost?
This MERTZ bushing, control/trailing arm is available for £5.99. Bushing, control/trailing arm 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 bushing, control/trailing arm?
Regular inspection of your bushing, control/trailing arm 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 bushing, control/trailing arm?
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 bushing, control/trailing arm fitted by a professional mechanic.
Can I use this part as a replacement for OE 1K0 505 541 B?
Yes, this MERTZ bushing, control/trailing arm is a direct replacement for OE part number 1K0 505 541 B. 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.
