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Details
| Specification | Value |
|---|---|
| Brand | BorgWarner (BERU) |
| MPN | z240 |
OE/OEM numbers (13)
Search by this OE number to find compatible parts
- MAYBACH / MERCEDES-BENZ / SMART / STEYR—003 159 81 03
- MAYBACH / SMART / STEYR / MERCEDES-BENZ—003 159 94 03
- MAYBACH / SMART / STEYR / MERCEDES-BENZ—004 159 19 03
- MAYBACH / SMART / STEYR / MERCEDES-BENZ—004 159 50 03
- MAYBACH / MERCEDES-BENZ / SMART / STEYR—31598103
- MAYBACH / SMART / STEYR—31599403
- MAYBACH / SMART / STEYR—41591903
- MAYBACH / SMART / STEYR—41595003
- MAYBACH / MERCEDES-BENZ / SMART / STEYR—A 003 159 81 03
- MAYBACH / MERCEDES-BENZ / SMART / STEYR—A 003 159 94 03
- MERCEDES-BENZ—A 003 159 94 03 90
- MAYBACH / MERCEDES-BENZ / SMART / STEYR—A 004 159 19 03
- MAYBACH / MERCEDES-BENZ / SMART / STEYR—A 004 159 50 03
Where this part fits
Original-fit position for OE 0031599403. The red ring marks where this part installs on the vehicle.
About this product
BorgWarner (BERU) spark plug (Z240) fires the air-fuel charge with a precisely controlled spark at the correct electrode gap and heat range for your engine's combustion chamber geometry. Thread reach, seat type, and hex size are specified to fit MERCEDES-BENZ cylinder heads without re-gapping or thread chasing. Replaces OE ignition references: 003 159 81 03, 003 159 94 03, 0031599403, 004 159 19 03 and 29 more. BorgWarner (BERU) ignition components are manufactured to SAE and DIN specifications and are approved for use in vehicles covered by manufacturer service agreements throughout Europe. Standard copper-core spark plugs last around 20,000–30,000 miles, while iridium or platinum-tipped plugs can last 60,000–100,000 miles — always follow the interval specified in your vehicle's service schedule. Symptoms of worn spark plugs include rough idling, engine misfires (often felt as a stumble under acceleration), increased fuel consumption, and difficulty starting in cold weather. Spark plug replacement is a straightforward DIY job on most engines — you need a spark plug socket, a torque wrench, and a gap gauge; allow 30–60 minutes for a four-cylinder engine, longer for boxer or V-configurations where access is tighter. Always match the heat range and electrode material specified by your engine manufacturer — fitting a plug with the wrong heat range can cause pre-ignition, fouling, or catalytic converter damage. Replacing spark plugs on schedule maintains optimal combustion efficiency, reduces harmful emissions, and prevents unburnt fuel from damaging the catalytic converter — a component that costs many times more to replace. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (12)
Spark Plug BorgWarner (BERU) Z240 — compatible car models
| Car models | MERCEDES-BENZ: C-CLASS Coupe (CL203), C-CLASS T-Model (S203), C-CLASS (W203), CLK (C208), CLK (C209), CLK Convertible (A208), CLK Convertible (A209), CLS (C219), E-CLASS Platform/Chassis (VF210), E-CLASS T-Model (S210) (+13 more) |
|---|---|
| Engines | C 320 (203.764); C 240 (203.261); C 240 (203.061); CLK 320 (208.365); CLK 240 (209.361); CLK 320 (208.465); CLK 240 (209.461); CLS 500 (219.375); E 280 (210.663); E 240 T (210.261); E 240 T (211.261); E 240 (210.061); E 240 (211.061); ML 320 (163.154); ML 500 4-matic (164.175) (+8 more) |
| Year of manufacture | 1995-2017 |
| Manufacturer article number (MPN) | Z240 |
| OE part numbers | 003 159 81 03, 003 159 94 03, 004 159 19 03, 004 159 50 03, 31598103, 31599403, 41591903, 41595003, A 003 159 81 03, A 003 159 94 03, A 003 159 94 03 90, A 004 159 19 03, A 004 159 50 03 |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
BorgWarner (BERU) z240 . Z240
- 1x Spark Plug
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 Spark Plug compatible with my car?
This Spark Plug 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 BorgWarner (BERU) Spark Plug have?
The package includes the Spark Plug as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this Spark Plug replace?
This Spark Plug replaces OE part numbers: 003 159 81 03, 003 159 94 03, 004 159 19 03, 004 159 50 03, 31598103, 31599403, 41591903, 41595003 and 5 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Spark Plug cost?
This BorgWarner (BERU) Spark Plug is available for £9.99. Spark Plug prices vary depending on brand, specifications, and vehicle compatibility. BorgWarner (BERU) parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Spark Plug?
Signs include rough idling, difficulty starting, engine misfires, increased fuel consumption, or lack of acceleration. Most spark plugs should be replaced every 30,000-60,000 miles for copper, or 60,000-100,000 miles for iridium/platinum.
What tools do I need to replace a Spark Plug?
Tools needed: spark plug socket (16mm or 21mm, with rubber insert), torque wrench (20-30 Nm typical -- check vehicle spec), ratchet with 3-inch extension, feeler gauge for gap check, anti-seize compound. Difficulty: Moderate DIY. Safety warning: Allow the engine to cool fully before removing plugs. Over-torquing will strip aluminium cylinder head threads -- always use a torque wrench.
Can I use this part as a replacement for OE 003 159 81 03?
Yes, this BorgWarner (BERU) Spark Plug is a direct replacement for OE part number 003 159 81 03. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the BorgWarner (BERU) Z240 the same as the BorgWarner (BERU) Z100?
No, while both are Spark Plug parts, they are different products. The BorgWarner (BERU) Z240 has specific dimensions, material composition, and fitting requirements. The BorgWarner (BERU) Z100 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
