AI Damage2017 Mack MRU: common problems
The maker issued 187 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 187
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 0 | 0 | 82 |
| Electrical system | 0 | 0 | 32 |
| Powertrain | 0 | 0 | 25 |
| Equipment | 0 | 0 | 21 |
| Engine | 0 | 0 | 18 |
| Fuel system | 0 | 0 | 16 |
| Suspension | 0 | 0 | 9 |
| Service brakes | 0 | 0 | 8 |
| Fuel/propulsion system | 0 | 0 | 5 |
| Structure | 0 | 0 | 4 |
| Vehicle speed control | 0 | 0 | 4 |
| Electronic stability control | 0 | 0 | 2 |
| Backover prevention | 0 | 0 | 1 |
| Communication | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers
- CBR - Mack Carrier Nut Adhesive Change
- CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise
US07 And Newer Emissions, Model Year 2008 And Newer.
- CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT…
CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)).
- FI - Drag Link and Pitman Arm Replacement
- CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded
- CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office…
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
- Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
- Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important…
Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important Information On Approved Filters - US17+OBD16 toUS21+OBD23
- If oil dilution is suspected refer to the applicable CBR solution below
∙ CBR-659Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions, All Model Years
- Frame lean can be caused by several seemingly isolated possibilities
The two most common are suspension and frame assembly issues.
- Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned…
Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping. These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual…
NHTSA lists 187 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2017 Mack MRU?
There are no owner complaints in the NHTSA data for this year; the data comes from 187 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2017 Mack MRU?
NHTSA lists 187 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2017 Mack MRU from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2017 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.