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FRONT SUSPENSION STRUT Mercedes-Benz CLA · PARTS GUIDE

Mercedes-Benz CLA Front Suspension Strut: Specs, Fitment & Common Faults

On the CLA, a confirmed genuine technical bulletin addresses a dull thumping noise from the front axle on bumps on related models, relating to the strut top mount bearings.

Illustration of a suspension strut and coil spring Illustration for editorial purposes
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OEM Part Number: confirm via VIN — front struts (aftermarket) Bilstein 22-220103 / KYB 3348061

Accuracy note: Covers the Mercedes-Benz CLA (C117 2013-2019) as listed in the UK aftermarket catalogues. Front struts, lower arms and top mounts are sold by side and by suspension spec — standard, sport / lowered (S line, M Sport, R-Line, ST-Line etc.), heavy-duty and adaptive / electronic damping all use different part numbers, and some makers split by engine or front axle load. The references below are UK aftermarket catalogue listings for this generation, labelled by brand; genuine numbers are shown only where a listing quotes one. Confirm the fit against your VIN, and replace struts and top mounts in pairs.
Front strut / shock absorber (aftermarket)KYB 3348061 (Excel-G twin-tube gas, LH); KYB 3348060 (RH); Sachs 315 267 (LH) and 315 268 (RH) (SFE36X167A); Sachs 315 859 (LH) and 315 860 (RH) (SFE36/22X150A); Bilstein 22-220103 (LH) and 22-220127 (RH) (B4); Meyle 026 623 0027 (LH); Monroe G8274 and G8275 (side not stated)
Front lower arm / wishbone (aftermarket)LH TRW JTC2783; RH TRW JTC2784 (lower); LH Ridex 273C1118; RH febi bilstein 175397; RH Mapco 54842 (with ball joint); LH Meyle 016 050 0072; RH Meyle 016 050 0073 (with ball joint)
Top mount / strut bearing (aftermarket)Lemförder 36747 01 (mount without bearing); Lemförder 33503 01 (bearing); Sachs 802 671 (mount) and 801 040 (bearing); febi bilstein 47323; febi bilstein 29475 (plastic bearing); Meyle 014 641 0003
Genuine (OE) numbers quotedMercedes A 246 323 00 20 (top mount, Lemförder 36747 01, Sachs 802 671); A 204 981 00 25 (bearing, Lemförder 33503 01, Sachs 801 040); 204 320 00 73 and 204 981 00 25 (AMG Sports Package kit, Original Imperium 32124)
Fitment notesthe front strut range matches the A-Class W176 and sport or lowered variants are not distinguished.

Mercedes-Benz CLA Front Suspension Strut: The System That Quietly Does All the Work

Before you feel a single bump or pothole in the Mercedes-Benz CLA's cabin, it's already passed through these parts — which is exactly why wear tends to present as several vague, overlapping symptoms rather than one clear-cut fault. A methodical check outperforms guesswork here.

Before you buy: suspension components vary by trim, engine weight and whether your car has the standard or sport-tuned setup. Always confirm against your VIN before ordering.

Mercedes-Benz CLA Front Suspension Strut: What It Does

The Mercedes-Benz CLA's front suspension combines the shock absorber and spring mount into a single strut assembly, which is what governs how the car settles after a bump. A worn one lets that bounce continue longer than it should, and it can wear tyres unevenly if ignored.

Mercedes-Benz CLA Front Suspension Strut: Watch: Replacing It

🎬 Watch: 2014 Mercedes CLA 250 Strut Replacement

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C117 strut job; alt: M6T8zTm30a0

Mercedes-Benz CLA Front Suspension reference plate
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Confirmed: A Genuine Technical Bulletin Worth Knowing About — Mercedes-Benz CLA Front Suspension

If a dull thumping noise has developed from the front of the car on bumps, this is genuinely worth knowing: a confirmed technical service bulletin addresses exactly this symptom on related models, relating to the shock absorber and strut top mount bearings, which can corrode over time and stop turning freely.

A genuinely useful finding worth checking if a knock survives other repairs: torque arms are a known weak spot on related models, worth checking these specifically if a persistent front knock has already survived replacing anti-roll bar links and control arms.

It's also genuinely worth knowing a useful diagnostic technique: with the road wheel removed, checking whether the gaiter and bump stop are loose at the top of the shock absorber's piston is a simple test worth trying.

Mercedes-Benz CLA Front Suspension Strut: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Front Suspension Strut Guide for symptoms of worn bushings and ball joints, confirming fitment against your VIN, and rubber vs polyurethane guidance.

More Mercedes-Benz Front Suspension Strut

The same part, covered across other Mercedes-Benz models.