2015 Mercedes-Benz Alliado

2015 Mercedes-Benz Alliado

The 2015 Mercedes-Benz Alliado is a mid-size luxury sedan that comes with a choice of two engine and transmission options. The base engine is a 3.5-liter V6 producing 273 horsepower and 251 lb-ft of torque, which comes paired with a 7-speed automatic transmission. There’s also an optional 4.6-liter V8 engine that produces 333 horsepower and 339 lb-ft of torque, which comes paired with a 9-speed automatic transmission.

The Alliado has received mixed reviews from critics and owners. Some of its strengths include a well-appointed interior, a comfortable ride, and a powerful engine lineup. However, some of the vehicle’s weaknesses include a high price tag, a lack of standard features, and limited cargo space.

Engine

3.5-Liter V6

• Intake manifold gasket failure
  • Description/Symptoms: Coolant leaks, overheating, loss of power
  • Solution: Replace intake manifold gasket
  • Estimated Cost to Fix: $1,000 - $1,500
  • Recalls: None Found
• Timing chain tensioner failure
  • Description/Symptoms: Noisy engine, loss of power, engine stalls
  • Solution: Replace timing chain tensioner and timing chain
  • Estimated Cost to Fix: $2,500 - $3,000
  • Recalls: None Found

4.6-Liter V8

• Valve cover gasket leak
  • Description/Symptoms: Oil leaks, burning oil smell, engine misfires
  • Solution: Replace valve cover gaskets
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found
• Crankshaft pulley failure
  • Description/Symptoms: Serpentine belt slips or breaks, engine knocking noise
  • Solution: Replace crankshaft pulley and serpentine belt
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found

Transmission

7-Speed Automatic

• Transmission fluid leak
  • Description/Symptoms: Transmission fluid leaks, slipping gears, rough shifting
  • Solution: Replace transmission fluid and pan gasket
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found
• Torque converter shudder
  • Description/Symptoms: Vibration when accelerating or shifting gears
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $1,500 - $2,000
  • Recalls: None Found

9-Speed Automatic

• Computer software issues
  • Description/Symptoms: Harsh shifting, transmission hesitation, limp mode
  • Solution: Update transmission computer software
  • Estimated Cost to Fix: Free at dealership
  • Recalls: None Found
• Valve body failure
  • Description/Symptoms: Slipping gears, transmission stuck in one gear
  • Solution: Replace valve body
  • Estimated Cost to Fix: $2,000 - $3,000
  • Recalls: None Found

Suspension

Front Suspension

• Strut mount bearing failure
  • Description/Symptoms: Clunking or knocking noise when turning or driving over bumps
  • Solution: Replace strut mount bearings
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found
• Lower control arm bushings worn
  • Description/Symptoms: Squealing or creaking when turning, unstable handling
  • Solution: Replace lower control arm bushings
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Rear Suspension

• Airmatic suspension failure
  • Description/Symptoms: Suspension sags, rough ride, error message on dashboard
  • Solution: Replace air struts or compressor
  • Estimated Cost to Fix: $2,000 - $3,000
  • Recalls: None Found
• Coil spring breakage
  • Description/Symptoms: Sagging suspension, uneven ride height
  • Solution: Replace coil springs
  • Estimated Cost to Fix: $400 - $600
  • Recalls: None Found

Electrical

• Battery drain
  • Description/Symptoms: Battery goes dead frequently, especially after sitting overnight
  • Solution: Check for parasitic draw, replace battery if needed
  • Estimated Cost to Fix: $50 - $500
  • Recalls: None Found
• Alternator failure
  • Description/Symptoms: Battery warning light comes on, flickering headlights, loss of power
  • Solution: Replace alternator
  • Estimated Cost to Fix: $600 - $1,000
  • Recalls: None Found

Exterior

• Headlight condensation
  • Description/Symptoms: Moisture inside the headlight housing
  • Solution: Replace headlight housing and/or bulb
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Interior

• Infotainment system glitches
  • Description/Symptoms: Screen freezes, touch screen unresponsive, Bluetooth issues
  • Solution: Update software or replace infotainment system
  • Estimated Cost to Fix: $200 - $1,000
  • Recalls: None Found
• Climate control issues
  • Description/Symptoms: AC not blowing cold, heater not working, fan not working
  • Solution: Repair or replace climate control unit
  • Estimated Cost to Fix: $500 - $1,500
  • Recalls: None Found

Summary

The 2015 Mercedes-Benz Alliado has various issues that range from minor to severe, with some being costly to repair. However, overall, the vehicle is well-regarded for its performance and comfort, though it may not be the most reliable option in its class.