2020 Mercedes-Benz OH 1621

Introduction

The 2020 Mercedes-Benz OH 1621 is a heavy-duty truck offered in a variety of configurations. It features a powerful engine and a robust chassis, making it suitable for demanding applications. Other engine and transmission options for the OH 1621 include:

• OM936 LA 712 6-cylinder in-line engine: 354 hp, 1,250 lb-ft of torque
• OM936 LA 726 6-cylinder in-line engine: 428 hp, 1,475 lb-ft of torque
• G211-12 6-speed manual transmission
• G281-12 9-speed manual transmission

Owners generally praise the OH 1621 for its performance, reliability, and fuel efficiency. However, some have reported issues with specific components.

Engine

OM936 LA 712 6-cylinder in-line engine

• Fuel Injector Failure:
  • Description/Symptoms: Difficulty starting, rough idling, decreased power
  • Solution: Replace fuel injector
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Turbocharger Failure:
  • Description/Symptoms: Loss of power, black smoke from exhaust
  • Solution: Replace turbocharger
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

OM936 LA 726 6-cylinder in-line engine

• EGR Valve Failure:
  • Description/Symptoms: Reduced engine performance, increased emissions
  • Solution: Replace EGR valve
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found
• Diesel Particulate Filter (DPF) Clogging:
  • Description/Symptoms: Decreased fuel efficiency, reduced engine power
  • Solution: Clean or replace DPF
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Transmission

G211-12 6-speed manual transmission

• Clutch Wear:
  • Description/Symptoms: Difficulty shifting gears, slipping
  • Solution: Replace clutch
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• Synchronizer Failure:
  • Description/Symptoms: Difficulty shifting into or out of gear
  • Solution: Replace synchronizer
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

G281-12 9-speed manual transmission

• No Issues Found

Suspension

• Leaf Spring Failure:
  • Description/Symptoms: Sagging or broken leaves
  • Solution: Replace leaf spring
  • Estimated Cost to Fix: $300 - $600+ per spring
  • Recalls: None Found
• Shock Absorber Failure:
  • Description/Symptoms: Bouncy or stiff ride, excessive body roll
  • Solution: Replace shock absorber
  • Estimated Cost to Fix: $200 - $400+ per shock
  • Recalls: None Found

Electrical

• Battery Failure:
  • Description/Symptoms: Difficulty starting, electrical components malfunctioning
  • Solution: Replace battery
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• Alternator Failure:
  • Description/Symptoms: Dim headlights, electrical components not working
  • Solution: Replace alternator
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Exterior

• Minor Rust/Corrosion:
  • Description/Symptoms: Surface rust on metal components, such as door handles or trim
  • Solution: Clean and apply rust inhibitor
  • Estimated Cost to Fix: $50 - $200+
  • Recalls: None Found
• Headlight Condensation:
  • Description/Symptoms: Moisture inside headlight assembly
  • Solution: Seal or replace headlight assembly
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Interior

• Dashboard Panel Cracking:
  • Description/Symptoms: Cracks in plastic dashboard panel
  • Solution: Replace dashboard panel
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Seat Heater Malfunction:
  • Description/Symptoms: Seat heater does not work or overheats
  • Solution: Repair or replace heating element
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Summary

Overall, the 2020 Mercedes-Benz OH 1621 is a reliable and capable truck. However, like any vehicle, it can experience issues over time. The severity of the issues reported varies, with some being relatively minor and others requiring more substantial repairs. The cost of repairs can also vary depending on the specific issue and the location of the repair.