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Mercedes-Benz · Known Issues

2022 Mercedes-Benz CLA Problems: 5 Known Issues

2022 model year · 700+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 700+ owner reports, the 2022 Mercedes-Benz CLA has 5 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. The most commonly reported issue is Front Suspension Strut Noise with 700 owner reports. Across all issues with published estimates, repair costs range from $50 to $1,000. DIY maintenance guides at au7o.io.

In This Article

  • CLA Electrical2
  • CLA Body/Panels1
  • CLA Brakes1
  • CLA Suspension1
  • FAQ
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In This Article

  • Electrical2
  • Body/Panels1
  • Brakes1
  • Suspension1
  • FAQ

All 5 Known Issues

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ALL YEARS2023202220212020201920182017201620152014

On the 2014-2022 Mercedes-Benz CLA, both CLA generations have been recalled three times for the telematics/communication module that places the automatic emergency call. 19V-787 (Nov 2019): on 2014-2016 CLA250, CLA250 4MATIC and CLA45 AMG (117 platform) a supplier software fault caused the module's GPS-derived date/time to drift from Nov 4, 2019, so vehicle position could be delayed or impossible and an inaccurate location sent to the emergency center; 24,226 vehicles remained after OTA updates. 21V-058 (Mar 2021): on MY2016-2021 CLA (and many other lines) the module could report an incorrect location because a temporary voltage drop in a crash disturbed position handling. 22V-365 (MB campaign 2023110006, letters July 2024): on 2019-2022 CLA the SIM card software could disable itself, preventing any mobile-network connection so manual and automatic eCall are unavailable.

Common Symptoms

  • Mercedes me / connectivity services offline
  • eCall or SOS button unavailable message
  • No visible symptom — module reports wrong position only during an emergency call

How to Fix

All three are free recall remedies: over-the-air software update where possible, otherwise the dealer updates the communication module software; for 22V-365 the dealer updates the SIM software or replaces the communication module if necessary (1-4 hours). Check the VIN at mbusa.com/recall — a used CLA may have one campaign done and another still open.

Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Sep 2026

On the 2014-2023 Mercedes-Benz CLA, cLA owners frequently see an 'Auxiliary Battery Malfunction' message on the dash. The CLA uses a small secondary 12V battery to support electronics and the start/stop system; it typically degrades after roughly 4-6 years. A weak auxiliary battery, or a charging fault (alternator/voltage regulator, loose connections), triggers the warning and can cause intermittent electrical glitches in the infotainment, lighting and start/stop function, sometimes with a stored 9062 fault.

Common Symptoms

  • 'Auxiliary Battery Malfunction' dash message
  • Intermittent infotainment/electrical glitches
  • Start/stop system inoperative
  • Flickering lights

How to Fix

Test and replace the auxiliary battery (a low-cost part located near/behind the engine bay fuse area); clear codes after replacement. If the warning returns, diagnose the charging system — check alternator/voltage regulator output and clean/secure ground and battery connections. Verify the main starter battery health at the same time, as it is the CLA's most common breakdown cause per ADAC data.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Mercedes-Benz 12V 14Ah auxiliary battery 000-982-96-08-64
    OEMMercedes-Benz 000-982-96-08-64 (A0009829608 supersession fam

    Auxiliary-battery replacement after load-test failure and physical/VIN confirmation Fitment/availability: The inspected direct U.S.

    FCP Euro

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$80 - $400

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026

On the 2014-2023 Mercedes-Benz CLA, cLA owners report water collecting in the trunk and pooling in the rear footwells, sometimes enough to soak carpets and risk corrosion and electrical faults. A common path is poorly sealing rear pressure-relief vent flaps and water tracking down inside the trunk lid around the tail-light cluster, then into the body. Owners also cite weak factory seam sealer on spot-welded roof/rear upper body panels and door seals that let rainwater seep onto sills.

Common Symptoms

  • Water in trunk/spare-wheel well
  • Wet rear footwell carpet
  • Damp/musty smell in cabin
  • Water streaks on door sills/running boards

How to Fix

Trace the leak: re-seal or replace the rear vent (pressure-equalization) flaps, reseal the tail-light gaskets and trunk-lid drain/seam areas with appropriate sealant, and inspect/replace door and trunk weatherstrips. Dry out saturated carpet/insulation to prevent mildew and corrosion, and check for related water damage to rear electrical modules.

Typical repair cost:$50 - $500

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026

On the 2014-2023 Mercedes-Benz CLA, cLA owners report rear brake pads and rotors wearing out before the fronts, with early 'Check Brake Pad Wear' warnings (some as low as ~50k miles) and rear rotor warping/vibration. A commonly cited root cause is the rear caliper piston sticking/dragging — a problem owners and independent mechanics say Mercedes is aware of on CLA and C-Class — which keeps the pad in contact with the rotor, accelerating wear and causing noise. Brake squeal from glazed rotors/worn pads is also common.

Common Symptoms

  • Early 'Check Brake Pad Wear' warning
  • Rear pads/rotors wearing before fronts
  • Brake squeal/grinding
  • Vibration or pulsation when braking
  • Warped rear rotors

How to Fix

Replace rear pads and rotors together (new pads on warped/grooved rotors stay noisy), and service or replace any sticking caliper — clean and lubricate slide pins and the piston, or rebuild/replace the caliper if the piston is seized. Apply brake grease to the pad backing/contact points to reduce squeal. Confirm the parking-brake actuator (electric on later cars) is releasing fully.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Zimmermann/Genuine Mercedes rear brake kit 2464230112
    OEMFCP Euro KIT-2464230112

    C117 CLA250 rear pads/rotors after measured replacement need and exact brake-option confirmation Fitment/availability: The inspected direct page identifies kit 2464230112 for CLA250/GLA250, includes Zimmermann rotors and genuine Mercedes…

    FCP Euro
  • Zimmermann/Genuine Mercedes 320x12 mm rear brake kit 2474230312
    OEMFCP Euro KIT-2474230312RKT

    C118 CLA250 320x12-mm solid rear-disc branch after measurements and exact option confirmation Fitment/availability: The inspected direct page identifies kit 2474230312 with unventilated 320x12-mm rotors, genuine pads and required hardwar…

    FCP Euro

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$300 - $900

Research This Issue

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Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026
Community reported
700 owners

On the 2014-2023 Mercedes-Benz CLA, the front struts and strut mount bearings develop clunking and creaking noises over bumps. The CLA shares its platform with the A-Class and both suffer from the same strut mount bearing wear issue, especially on models with sport suspension.

This issue also affects: Mercedes-Benz A-Class, Mercedes-Benz GLK-Class

Common Symptoms

  • Clunking from front end over bumps
  • Creaking when turning the steering wheel while parked

How to Fix

Replace the front strut mount bearings first as the cheapest fix. If noise remains, replace the full strut assemblies with OEM or Sachs replacements. Alignment required after strut replacement.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Febi Bilstein front strut-mount bearing 2049810025
    OEMFebi Bilstein 29475 / Mercedes 204-981-00-25

    C117 first-generation CLA250 4Matic bearing branch after upper-bearing noise is confirmed Fitment/availability: The inspected direct product page explicitly fits 2014-2019 CLA250 4Matic 117.346, positions front left/right, quantity two, …

    RM European
  • Genuine Mercedes-Benz front strut bearing 218-321-00-83
    OEMMercedes-Benz 218-321-00-83

    C118 2020-2023 CLA250/CLA35/CLA45 bearing branch after upper-bearing failure is confirmed Fitment/availability: The inspected direct product result identifies genuine 218-321-00-83 and fitment for 2020-2023 CLA250, CLA35 AMG and CLA45 AMG.

    MBPartsGiant

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipThe strut mount bearing is a $30 part and takes 1 hour per side. Try this before committing to $800+ full strut replacement.
Typical repair cost:$200 - $1,000

Research This Issue

Based on 700 owner reports

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Community Reported
Medium Confidence700 owner reportsLast reported by owners Aug 2025Reviewed Mar 2026
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Frequently Asked Questions

What are the most common Mercedes-Benz CLA problems?

According to Au7o's analysis of 700+ owner reports, the 2022 Mercedes-Benz CLA has 5 documented issues. The most frequently reported are: Water Leaks into Trunk and Rear Footwell (Vent Flap / Seam Sealing), Premature Rear Brake Wear and Caliper Piston Sticking, eCall Communication Module Software Faults — Wrong Crash Location or No Network (Recalls 19V-787, 21V-058, 22V-365). None are rated critical, but regular maintenance is recommended.

Is the Mercedes-Benz CLA reliable?

The 2022 Mercedes-Benz CLA has 5 known issues documented across 700+ owner reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Mercedes-Benz CLA problems?

Repair costs for known Mercedes-Benz CLA issues range from $0 to $1,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2014-2023 Mercedes-Benz CLA Water Leaks into Trunk and Rear Footwell (Vent Flap / Seam Sealing)?

CLA owners report water collecting in the trunk and pooling in the rear footwells, sometimes enough to soak carpets and risk corrosion and electrical faults. A common path is poorly sealing rear pressure-relief vent flaps and water tracking down inside the trunk lid around the ta… Repairs typically run $50-$500. Severity: medium.

What is the 2014-2023 Mercedes-Benz CLA Premature Rear Brake Wear and Caliper Piston Sticking?

CLA owners report rear brake pads and rotors wearing out before the fronts, with early 'Check Brake Pad Wear' warnings (some as low as ~50k miles) and rear rotor warping/vibration. A commonly cited root cause is the rear caliper piston sticking/dragging — a problem owners and ind… Repairs typically run $300-$900. Severity: medium.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 700+ owner reports, NHTSA recalls, TSBs, and automotive forums.

What is the 2014-2022 Mercedes-Benz CLA eCall Communication Module Software Faults — Wrong Crash Location or No Network (Recalls 19V-787, 21V-058, 22V-365)?

Both CLA generations have been recalled three times for the telematics/communication module that places the automatic emergency call. 19V-787 (Nov 2019): on 2014-2016 CLA250, CLA250 4MATIC and CLA45 AMG (117 platform) a supplier software fault caused the module's GPS-derived date… Repairs typically run $0-$0. Severity: medium.

What is the 2014-2023 Mercedes-Benz CLA Front Suspension Strut Noise?

The front struts and strut mount bearings develop clunking and creaking noises over bumps. The CLA shares its platform with the A-Class and both suffer from the same strut mount bearing wear issue, especially on models with sport suspension. Repairs typically run $200-$1,000. Severity: low.

What is the 2014-2023 Mercedes-Benz CLA Auxiliary (Backup) Battery Malfunction Warning?

CLA owners frequently see an 'Auxiliary Battery Malfunction' message on the dash. The CLA uses a small secondary 12V battery to support electronics and the start/stop system; it typically degrades after roughly 4-6 years. A weak auxiliary battery, or a charging fault (alternator/… Repairs typically run $80-$400. Severity: low.