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W117 Mercedes 2013–2019: Features, Common Issues, and Maintenance Tips
W117 is the first-generation CLA-Class, launched in 2013, and quickly gained attention for its bold styling, sporty profile, and compact luxury appeal. Designed to offer the aesthetics of a coupe with the practicality of a sedan, the W117 features advanced safety tech, turbocharged engines, and a premium interior making it a standout in the entry-level luxury segment.
Mercedes W117 also comes with its share of common issues, such as infotainment glitches, sensor malfunctions, and suspension wear over time. In this guide, we’ll explore its key features, performance characteristics, and maintenance advice to help current or future owners keep their CLA performing at its best while avoiding common pitfalls.
Overview of the Mercedes-Benz CLA W117
- – Design and Style: The Mercedes W117 is often praised for its distinctive coupe-like design, which blends elegance with sportiness. The sloping roofline, aggressive front grille, and striking LED headlights contribute to its iconic appearance.
- – Performance: Equipped with a range of turbocharged engines, the W117 offers a dynamic driving experience. The CLA 250, CLA 45 AMG, and the CLA 180 provide options catering to different performance preferences.
- – Interior and Technology: Inside, the CLA W117 boasts a high-quality interior with advanced features such as the COMAND infotainment system, driver assistance technologies, and luxurious materials.
W117 Engine Breakdown & Model
The Mercedes W117, commonly known as the CLA-Class, features a range of engines designed to balance performance and efficiency. The W117 was produced from 2013 to 2019 and offered various engine options, catering to different driving preferences.
Key Engine Options in the Mercedes W117:
| Model | Engine (Code) | Power | Torque | Years |
|---|---|---|---|---|
| CLA 180 | 1.6 L M270 petrol | ~122 PS | 200 Nm | 2013–2019 |
| CLA 200 | 1.6/2.0 L M270 petrol | 156 PS | 250 Nm | 2013–2019 |
| CLA 250 | 2.0 L M270 petrol | 211 PS | 350 Nm | 2013–2019 |
| CLA 45 AMG | 2.0 L M133 turbo | 360–381 PS | 450–475 Nm | 2013–2019 |
1. M270 (Gasoline)
- – The M270 engine is a 1.6 to 2.0-liter turbocharged inline-4 engine, widely used across the W117 range. It powers models like the CLA 180, CLA 200, and CLA 250. This engine is known for its balance of power and fuel efficiency, offering strong acceleration while maintaining reasonable fuel economy.
2. OM651 (Diesel)
- – The OM651 engine is a 2.1-liter turbocharged inline-4 diesel engine found in models like the CLA 200 CDI and CLA 220 CDI. This engine is praised for its excellent torque delivery and fuel efficiency, making it ideal for long-distance driving. The OM651 is generally reliable but has had some issues related to the diesel particulate filter (DPF) and EGR valve, especially in older models.
3. M133 (AMG)
- The M133 engine is a high-performance 2.0-liter turbocharged inline-4 engine used in the CLA 45 AMG. This engine is a standout in the W117 lineup, delivering exceptional power and performance. With outputs ranging up to 375 horsepower, it’s one of the most powerful 4-cylinder engines available.
The Mercedes W117 engines are well-regarded for their performance, efficiency, and reliability, making the CLA-Class a popular choice in the luxury compact segment.
Typical Issues & Diagnosis
Mercedes CLA W117 Electrical Problems
Electrical issues are not uncommon in the CLA W117. Owners have reported problems with the infotainment system, malfunctioning sensors, and occasional battery drain. Ensuring all software updates are installed and performing regular diagnostics can help mitigate these issues.
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Some owners have experienced issues with engine performance, including rough idling, loss of power, and turbocharger failures. Regular maintenance, including timely oil changes and using high-quality fuel, can help prevent these problems.
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Mercedes CLA W117 Suspension Concerns
The W117’s suspension system is designed for a balance of comfort and sportiness, but it may develop issues over time. Common complaints include noise from the suspension, uneven tire wear, and a harsh ride. Regular inspection of suspension components and alignment checks are crucial to maintaining ride quality.
W117 Air Conditioning Problems
Air conditioning issues, such as weak cooling or blowing hot air, have been reported by some W117 owners.
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| Issue | Symptoms | Diagnostic Tip |
|---|---|---|
| Dual‑Clutch transmission | Jerky, hesitant shifts | Scan for transmission codes; update software |
| Infotainment glitches | Frozen/nav or Bluetooth errors | Update firmware or reboot the system |
| Suspension wear | Clunks, harsh ride | Inspect struts, drop-links, bushings |
| Oil/coolant leaks | Leaks under engine or burning smell | Check valve cover, cooler seals |
| Electrical drains | Dead battery after parking | Test parasitic draw |
| Interior rattles | Dashboard/trim creaks | Common in early CLA 45 AMG models |
| Sensor & ECUs errors | Random warning lights | Scan regularly; replace faulty sensors |
Key Maintenance & Prevention for the Mercedes-Benz CLA W117
A. Regular Oil Changes
To keep your CLA W117’s engine in top condition, adhere to the recommended oil change intervals. Using the correct grade of oil is essential to ensure optimal performance and longevity.
B. Tire Maintenance
Regularly check tire pressure and tread depth to ensure safety and performance. Rotate the tires according to the manufacturer’s guidelines to promote even wear and extend their lifespan.
C. Brake System Care
Monitor the brake pads, rotors, and fluid levels regularly. Worn brake components can compromise safety and lead to more expensive repairs if not addressed promptly.
D. Addressing Warning Lights
If any warning lights appear on your dashboard, such as the Check Engine Light or ABS warning, it’s crucial to address them immediately. Delaying repairs can lead to more severe issues and higher repair costs.
summary:
- – DCT transmission: Serviced fluid, code scan, and software update.
- – Infotainment: Keep system firmware current; reboot when needed.
- – Suspension: Inspect and replace worn components annually.
- – Oil leaks: Monitor for seal wear; address early.
- – Electrical system: Test battery drains and cable connections.
- – Interior upkeep: Tighten trim, replace clips on early units.
Frequently Asked Questions
Is the W117 reliable long-term?
Yes—especially the post-2015 models. Keep up with regular maintenance to avoid minor faults.
Why does the CLA feel jerky at low speed?
The dual‑clutch transmission may require a software update and fluid check to smooth shifts.
What causes infotainment freezes?
Firmware bugs are common. A software update or quick reboot usually resolves the issue.
Should I worry about electrical drains?
Yes, sensor errors or loose wiring can drain the battery overnight. Test and repair prongs or circuits.
