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Impact
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Freightliner & international truck specialists

Impact specializes in repairing Freightliner trucks — Cascadia, M2, Columbia, Coronado and more — along with other international heavy truck brands. Our technicians are experienced with Cummins and Detroit Diesel engines, and we bring dealer-level diagnostic equipment straight to your breakdown, wherever you are.

Freightliner truck front grille
Freightliner truck and trailer

Freightliner & multi-brand expertise

Factory-level diagnostics for Detroit DD13/DD15 and Cummins ISX/X15 engines.Full aftertreatment and emissions system repairs, including DPF, DEF and SCR faults.Experience across Cascadia, M2, Columbia and Coronado models.Multi-brand experience with International, Kenworth, UD, MAN and Volvo trucks.Rapid mobile dispatch to your breakdown, day or night.

Customer satisfaction guaranteed

Common Freightliner repairs we handle

Freightliner trucks (Cascadia, M2, Columbia, Coronado, etc.) are workhorses, but certain systems tend to need attention more than others. Here's a rundown of the most common repairs our technicians handle:

Engine-related

Diesel Particulate Filter (DPF) cleaning or replacement — one of the most frequent issues, especially with Detroit DD13/DD15 enginesEGR (Exhaust Gas Recirculation) valve/cooler failuresTurbocharger repair or replacementFuel injector issuesOil leaks (valve cover gaskets, oil pan gaskets)Coolant leaks / water pump failuresAir compressor failures

Aftertreatment / Emissions system

DEF (Diesel Exhaust Fluid) dosing module or pump failuresNOx sensor replacementSCR (Selective Catalytic Reduction) system faults

Electrical

Battery and alternator issuesWiring harness chafing/corrosion (common on older units)ECM/ECU fault codes and sensor troubleshootingHeadlight/marker light assemblies (Cascadias in particular have known housing issues)

Brakes

Air brake chamber and valve replacementBrake pad/shoe and drum/rotor wearABS sensor faults

Suspension & Steering

Air ride suspension bag/leak repairsShock absorber replacementSteering linkage and tie rod wearKing pin and bushing wear

Drivetrain

Clutch replacement (manual transmissions)Transmission issues (especially older Eaton/Fuller units, or DT12 automated manuals)U-joint and driveshaft repairsDifferential leaks/wear

HVAC

Cab heater core or blend door failuresA/C compressor and condenser issues (common in Cascadias)

Cab & Body

Door hinge and latch wearWindshield wiper motor issuesDash cluster/gauge failures

Fleets we service

Freightliner Columbia on the highway

Freightliner Columbia & Coronado

Long-haul conventional cabs, kept on the road with dealer-level diagnostics and genuine repairs.
Freightliner conventional cab hauling a flatbed trailer

Cascadia & M2 fleets

From DPF regens to DEF dosing faults, we keep modern Freightliner fleets compliant and moving.
International truck grille emblem

International trucks

Our experience extends beyond Freightliner to other international heavy truck brands.
Truck at a shipping container yard

Logistics & freight fleets

Servicing the trucks that keep freight and logistics operators moving across the Northern Cape.
Kenworth long-haul truck

Kenworth & other brands

Multi-brand expertise means one call covers your whole mixed fleet, not just your Freightliners.

Why Freightliner owners choose Impact

Specialists in Cummins and Detroit Diesel enginesJaltest and Launch dealer-level diagnostic equipmentExperienced with Cascadia, M2, Columbia and Coronado modelsComfortable working across International, Kenworth, UD, MAN and Volvo trucks100% mobile — we come to your breakdownBacked by our 6-month / 10,000km workmanship warranty

Benefits of using us

We're good at finding problemsWe use modern diagnostic machinesOur team is up to date with the latest repair trendsWe back up our workmanship with a warrantyWe can work on various vehicle types, from cars to trucksWe use quality parts when replacing parts on a vehicleWe're reliable

Our pricing

ItemCost
Labour rate per hourR600.00
Travel costs per/kmR10.00
ItemCost
Labour rate per hourR850.00
Travel costs per/kmR10.00

Read our Google Reviews.

Hear what our clients have to say

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Clive Maistry

"My experience with Impact Mobile was terrific from the initial call! I had an issue with my Engine Light. They called, made an appointment for a time convenient for me, and drove through to my offices to assist. Well impressed for a mobile auto service! I must say 5 stars and thumbs up to the team!! #Recommended"

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Vumile Sivile

"Good evening Froncois and your colleague. Thank you for your great service in such a short time, I have requested your help this morning and indeed you did not disappoint, keep up the good work, I like the fact that you give a detailed report of your work. Thank you kindly."

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Lyle Dolan Idas

"Impact mobile auto electricians knowledgeable, dependable, They swiftly and accurately identified the issue with my vehicle and executed the necessary repairs with impressive efficiency and skill. The quality of their work was evident, resolving the problem effectively and getting me back on the road safely. Their commitment to high standards, even under pressure, was truly commendable.

Ready to get your Freightliner back on the road?

We come to you to fix it on-site, whether you're at the mall, office, or roadside.