2008 Mercedes-Benz MBO 14000

The 2008 Mercedes-Benz ML350 is a mid-size luxury SUV that offered a blend of comfort, performance, and technology. Engine options included a 3.5L V6 (268 hp, 258 lb-ft of torque) and a 5.5L V8. Both engines were paired with a 7-speed automatic transmission (7G-TRONIC). Owners often praised the ML350 for its comfortable ride, luxurious interior, and strong engine performance. Common complaints included issues with the electrical system, air suspension problems, and some engine-related concerns.

Engine

3.5L V6

• Balance Shaft Gear Wear
  • Description/Symptoms: A worn balance shaft gear can cause rattling noises from the engine, especially during cold starts. If left unchecked, it can lead to engine damage.
  • Solution: Replacement of the balance shaft gear.
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found
• Camshaft Position Sensor Failure
  • Description/Symptoms: The car may experience rough idling, stalling, reduced power, and the check engine light illuminating.
  • Solution: Replacing the faulty camshaft position sensor(s).
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found

5.5L V8

• No Issues Found

Transmission

7G-TRONIC (722.9)

• Valve Body Issues
  • Description/Symptoms: Harsh or erratic shifting, delayed engagement, slipping between gears, and potential limp mode. Can be caused by conductor plate or valve body malfunction.
  • Solution: Replacement or rebuild of the valve body or conductor plate replacement.
  • Estimated Cost to Fix: $800 - $2,500+
  • Recalls: None Found

Suspension

• Airmatic Air Suspension Failure
  • Description/Symptoms: The vehicle may sag on one or more corners, the air compressor may run continuously, and error messages related to the suspension may appear.
  • Solution: Replacement of the air struts, air compressor, or valve block.
  • Estimated Cost to Fix: $800 - $2,000+ per strut, $500-$1000 for the compressor.
  • Recalls: None Found

Electrical

• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Key not recognized, inability to start the vehicle, steering lock malfunction.
  • Solution: Replacement of the EIS module.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• SAM (Signal Acquisition Module) Failure
  • Description/Symptoms: Issues with various electrical functions such as lights, wipers, power windows, or door locks.
  • Solution: Replacement of the faulty SAM unit.
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof may become stuck, fail to open or close properly, or make unusual noises.
  • Solution: Repair or replacement of the sunroof motor, guides, or assembly.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Summary The 2008 Mercedes-Benz ML350 presents a mix of potential issues. The balance shaft issue in the 3.5L V6 is a relatively serious concern, as are the potential air suspension and electrical system failures. The transmission valve body issue can also be expensive to fix. The severity of these problems ranges from moderate to severe, and the costs can quickly add up, making careful inspection and maintenance history crucial when considering purchasing or maintaining one of these vehicles.