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CP247
Gallery
BrandTRW
MPNGDB1378
OE refs8
SKU0161-GDB1378
GTIN / EAN3322937242122

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Details

SpecificationValue
BrandTRW
MPNgdb1378
CategoryBrake pad set
Manufacturer RestrictionKELSEY HAYES
Thickness [mm]16 mm
Test MarkE1 90R 01024/447
Width [mm]188 mm
Height [mm]58.8 mm

OE/OEM numbers (8)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 1634201220. The red ring marks where this part installs on the vehicle.

PART — Others
OthersPosition main

About this product

TRW brake pads (GDB1378) deliver consistent stopping power through a friction compound engineered for low noise, reduced brake dust, and stable bite across a wide temperature range. The pad compound characteristics — Manufacturer Restriction: KELSEY HAYES, Thickness [mm]: Silicone mm, Test Mark: E1 90R 01024/447, Width [mm]: 188 mm — are selected to balance progressive pedal feel with minimal wear on mating discs. Designed as a direct replacement for MERCEDES-BENZ applications, these pads slot into the original caliper bracket without modification. Cross-references OE part numbers: 0235111, 025 231 9317/PD, 025 231 9317/W, 05P983 and 69 more. TRW brake friction products are validated in independent dynamometer tests and are used by authorised service centres throughout Europe. Brake pads typically need replacing every 25,000–50,000 miles, depending on driving style, vehicle weight, and whether you drive mostly in urban stop-start traffic or on open roads. Watch for squealing or grinding noises when braking, increased stopping distances, a pulsating brake pedal, or a brake warning light on your dashboard — any of these signals that the friction material is worn to its minimum thickness. Brake pad replacement is a moderate DIY job requiring basic hand tools, a jack, and axle stands — allow approximately 1–2 hours per axle for a first-time installer, less if you have experience with caliper removal. When choosing brake pads, look for ECE R90 approval (mandatory for road use in Europe), copper-free formulations for environmental compliance, and a shim or anti-squeal backing plate for quiet operation. Replacing brake pads promptly prevents scoring and heat damage to the more expensive brake discs, saving significantly on repair costs in the long run. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.

Brake pad set buying guide

Why replace this part?

Brake pads are the primary friction component in your braking system. As they wear thin, braking performance deteriorates, increasing stopping distances and putting your safety at risk. Worn pads can also damage brake discs, leading to more expensive repairs.

Signs you need a replacement

  • Squealing or grinding noises when braking
  • increased stopping distances
  • brake pedal vibration or pulsation
  • dashboard warning light
  • visible pad thickness below 3mm
  • pulling to one side when braking

When to replace

Every 30,000–70,000 miles depending on driving conditions, pad material, and vehicle weight. City driving with frequent stops wears pads faster than motorway driving.

Installation difficulty:Moderate — requires basic tools and mechanical knowledge

About TRW

TRW Automotive, with roots dating back to 1901 in Cleveland, USA, is a global leader in safety-critical automotive components, now part of ZF Friedrichshafen. TRW specialises in brake pads, brake discs, steering components, suspension parts, and engine valves. As an OE supplier to virtually all major global car manufacturers, TRW products meet the highest safety and performance standards. Trusted by vehicle makers for over a century, TRW delivers braking and steering components that prioritise safety without compromise.

Suitable cars

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LUCASLBP1473
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MEYLE025 231 9317/W
MINTEXMDB1936
NECTOFD7005A
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OPTIMAL10314
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PAGIDT1171
PEX7500
QH Benelux7089
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RAMEDERT0610148
REMSA069701
REMSA69701
ROULUNDS RUBBER838281
RUVILLED76076280
sbs223342
SCT - MANNOLSP244
SPIDAN32806
SWAG10916410
TEXTAR2319303
TEXTAR2319316315
TRISCAN811023028
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Brake pad set TRW GDB1378compatible car models

Car modelsMERCEDES-BENZ: M-CLASS (W163)
EnginesML 230 (163.136)
Year of manufacture1998-2005
Manufacturer article number (MPN)GDB1378
OE part numbers163 420 00 20, 163 420 03 20, 163 420 12 20, 163420122041, A 163 420 00 20, A 163 420 03 20, A 163 420 12 20, A163420122041
Compatibility check

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Description and what's included

TRW gdb1378 COTEC. Height [mm]: 58,8 mm. Manufacturer Restriction: KELSEY HAYES. Test Mark: E1 90R 01024/447. Thickness [mm]: 16 mm. Wear Warning Contact: 0. Width [mm]: 188 mm

What's included:
  • 1x Set of brake pads (axle set)
  • Wear indicator wire (where applicable)
  • Mounting accessories (where applicable)
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 Brake pad set compatible with my car?

This Brake pad set 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 TRW Brake pad set have?

This TRW Brake pad set has the following specifications: Manufacturer Restriction: KELSEY HAYES; Thickness [mm]: 16 mm; Test Mark: E1 90R 01024/447; Width [mm]: 188 mm; Height [mm]: 58,8 mm; Wear Warning Contact: 0. Check the full specifications table above for complete details.

What OE part numbers does this Brake pad set replace?

This Brake pad set replaces OE part numbers: 163 420 00 20, 163 420 03 20, 163 420 12 20, 163420122041, A 163 420 00 20, A 163 420 03 20, A 163 420 12 20, A163420122041. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Brake pad set cost?

This TRW Brake pad set is available for £57.99. Brake pad set prices vary depending on brand, specifications, and vehicle compatibility. TRW parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Brake pad set?

Common signs include squealing or grinding noises when braking, increased stopping distances, brake pedal vibration, or a dashboard warning light. Most brake pads should be inspected every 20,000 miles and replaced when pad thickness falls below 3mm.

What tools do I need to replace a Brake pad set?

Tools needed: floor jack and axle stands, lug wrench or 19mm socket, brake caliper wind-back tool (or C-clamp), 7mm hex / Torx socket for caliper bolts, brake cleaner spray, copper grease, torque wrench. Difficulty: Moderate DIY. Safety warning: Never compress the caliper piston without checking the brake fluid reservoir level will not overflow; brake fluid is corrosive -- keep it off painted surfaces and skin.

Can I use this part as a replacement for OE 163 420 00 20?

Yes, this TRW Brake pad set is a direct replacement for OE part number 163 420 00 20. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.

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