2018 Volvo VNL 400 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Base Tractor Truck - Long Conventional 2-Door
Engines covered
- 14.9L 912Cu. In. l6 DIESEL Turbocharged
- 10.8L 661Cu. In. l6 DIESEL Turbocharged
- 12.8L 780Cu. In. l6 DIESEL Turbocharged
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Volvo Trucks North America (Volvo Trucks) is recalling certain 2018-2020 VNL and VNX vehicles configured as 740 and 760 sleeper models. The sleeper bunk window may detach and fall from the vehicle.
If a window detaches from the vehicle, it may strike another vehicle or pedestrian, increasing the r
Volvo Trucks has notified owners, and dealers will replace the window hinge, free of charge. Owners
Volvo Trucks North America (Volvo Trucks) is recalling certain 2018-2020 VAH, VHD, VNL, and VNR vehicles. The fuse in the transmission circuit may blow, preventing the transmission from shifting.
If the fuse blows the transmission may not shift, increasing the risk of a crash.
Volvo Trucks will notify owners, and dealers will inspect and replace the fuse, if necessary, free o
Volvo Trucks North America (Volvo) is recalling certain 2018-2021 VNL and VNR buses. The Gross Axle Weight Rating (GAWR) for the rear drive axles stated on the Federal Certification Label exceeds the
If the rear axles are overloaded, over time the wheel hubs may fail prematurely, increasing the risk
Volvo will notify owners and send corrected replacement labels, free of charge. The recall began Au
A PRIOR WRECK HAPPEN SEMI TRUCK TRAILER CROSS MEDIAN AND LAY OVER BLOCKING ALL MY LANES IN THE DARK ON 09/10/18 TIME 0040 HRS RAINING WIPER ON . DID NOT SEE IT TILL FINAL SECONDS ROOF OF SEMI TRAILER
A PRIOR WRECK HAPPEN SEMI TRUCK TRAILER CROSS MEDIAN AND LAY OVER BLOCKING ALL MY LANES IN THE DARK ON 09/10/18 TIME 0040 HRS RAINING WIPER ON . DID NOT SEE IT TILL FINAL SECONDS ROOF OF SEMI TRAILER
A PRIOR WRECK HAPPEN SEMI TRUCK TRAILER CROSS MEDIAN AND LAY OVER BLOCKING ALL MY LANES IN THE DARK ON 09/10/18 TIME 0040 HRS RAINING WIPER ON . DID NOT SEE IT TILL FINAL SECONDS ROOF OF SEMI TRAILER
The contact owns a 2018 Volvo VNL Truck. The contact stated while driving at various speeds, the vehicle was lunging forward and failed to properly respond while depressing the accelerator pedal. Ther
The contact owns a Volvo 2018 VNL64 Commercial vehicle. The contact stated that the vehicle would shut down while driving at various speeds. There was no further information provided. The vehicle was
Showing the 5 most serious of 12 complaints filed with NHTSA.
