2021 Mercedes-Benz GLA45 AMG

Introduction: The 2021 Mercedes-Benz GLA45 AMG is a compact luxury SUV powered by a 2.0-liter turbocharged inline-four engine that produces 382 horsepower and 354 lb-ft of torque. It comes standard with an 8-speed dual-clutch automatic transmission and all-wheel drive. The GLA45 AMG is praised for its performance, but some owners have reported issues with various components.

Engine

2.0-liter turbocharged inline-four engine

• Fuel injector failure: Symptoms include rough idling, stalling, and reduced engine power. Solution: Replace the faulty fuel injectors. Estimated Cost to Fix: $400 - $800+
• Turbocharger failure: Symptoms include reduced engine power, excessive smoke from the exhaust, and a whining noise. Solution: Replace the turbocharger. Estimated Cost to Fix: $2,000 - $3,000+
• Timing chain tensioner failure: Symptoms include a rattling noise from the engine and reduced engine power. Solution: Replace the timing chain tensioner. Estimated Cost to Fix: $1,000 - $2,000+
• Engine oil leaks: Symptoms include oil spots under the vehicle and a burning oil smell. Solution: Repair or replace the faulty gaskets or seals. Estimated Cost to Fix: $200 - $500+

Transmission

8-speed dual-clutch automatic transmission

• Clutch failure: Symptoms include difficulty shifting gears, slipping gears, and shuddering during acceleration. Solution: Replace the faulty clutch pack or the entire transmission. Estimated Cost to Fix: $2,000 - $5,000+
• Transmission control module failure: Symptoms include erratic shifting, delayed gear changes, and a check engine light. Solution: Replace the transmission control module. Estimated Cost to Fix: $500 - $1,000+
• Transmission fluid leaks: Symptoms include low transmission fluid levels and a burning smell. Solution: Repair or replace the faulty seals or gaskets. Estimated Cost to Fix: $200 - $500+

Suspension

• Front strut failure: Symptoms include excessive bouncing, a rough ride, and uneven tire wear. Solution: Replace the faulty strut assembly. Estimated Cost to Fix: $500 - $1,000+
• Rear shock absorber failure: Symptoms include a bouncy ride, a knocking noise from the rear, and poor handling. Solution: Replace the faulty shock absorbers. Estimated Cost to Fix: $300 - $600+
• Sway bar link failure: Symptoms include a clunking noise from the suspension and poor handling. Solution: Replace the faulty sway bar link. Estimated Cost to Fix: $100 - $200+

Electrical

• Battery failure: Symptoms include difficulty starting the car, flickering lights, and a dead battery. Solution: Replace the battery. Estimated Cost to Fix: $200 - $500+
• Alternator failure: Symptoms include a dim instrument cluster, a weak battery, and a check engine light. Solution: Replace the alternator. Estimated Cost to Fix: $500 - $1,000+
• Wiring harness issues: Symptoms include electrical malfunctions, flickering lights, and a check engine light. Solution: Repair or replace the faulty wiring harness. Estimated Cost to Fix: $500 - $2,000+

Exterior

• Sunroof drain tube blockage: Symptoms include water leaking into the cabin. Solution: Clean the sunroof drain tubes. Estimated Cost to Fix: $100 - $300+

Interior

• Infotainment system glitches: Symptoms include a frozen screen, slow performance, and lost connectivity. Solution: Update the infotainment system software or replace the faulty infotainment unit. Estimated Cost to Fix: $200 - $1,000+
• Climate control system failure: Symptoms include an inoperative air conditioner or heater, and temperature fluctuations. Solution: Repair or replace the faulty climate control module or compressor. Estimated Cost to Fix: $500 - $1,500+

Summary The 2021 Mercedes-Benz GLA45 AMG is a performance SUV that has received positive reviews. However, some owners have experienced issues with the engine, transmission, suspension, electrical components, exterior, and interior. The severity of these issues varies, and the cost of repairs can range from a few hundred dollars to several thousand dollars. While not all GLA45 AMG owners will encounter these problems, it is important to be aware of them before making a purchase decision.