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— RV Mechanical Repair · Oxnard, CA

RV mechanical repair, done right the first time.

A motorhome is a house sitting on a truck chassis — and the truck half is where the trouble usually starts. Dieter's Motors has been diagnosing engines, brakes, drivetrains and electrical systems in Oxnard since 1972. Bring us the mechanical side of your RV and get straight answers, ASE-certified work, and discounted RV rates.

1972Family-owned
ASECertified techs
Class A / B / CGas & diesel chassis
Ventura CountyOxnard · Camarillo · Ventura

Discounted RV rates — ask when you call.

RV owners get a reduced labor rate on mechanical repairs and maintenance at Dieter's Motors. Mention this page when you book and we'll quote you the discounted rate up front, before any work starts.

Get your discounted quote
01 — What we service

Everything under the coach.

Factory-level diagnostics and heavy-duty repair for the running gear that gets you there and stops you safely. Gas or diesel, tow vehicle or motorhome — we work on all of it.

/ 01

Chassis & Drivetrain

Engine, transmission, differential and driveline service on common RV chassis platforms, from small Class C vans to diesel pushers.

/ 02

Brakes & Hydraulics

Pads, rotors, drums, calipers, hoses and fluid service — specified for the real loaded weight of your coach, not a passenger car.

/ 03

Suspension & Steering

Shocks, bushings, front-end wear, sway control and alignment-ready repairs so a long day of driving stops feeling like work.

/ 04

Charging & Generator

Alternators, batteries, isolators, onboard generator service and charging faults traced properly instead of guessed at.

/ 05

A/C & Electrical

Dash air that actually blows cold, no-start diagnosis, 12V gremlins, lighting and wiring repair.

/ 06

Pre-Trip Inspection

A full mechanical once-over before a long haul — fluids, belts, hoses, brakes, cooling, leaks and tire condition.

02 — Straight answers

We handle the mechanical side.

Plenty of shops will take an RV in and then figure it out. We'd rather tell you up front exactly what we're good at, so nobody wastes a trip.

  • Engine, transmission and driveline diagnostics and repair
  • Brakes, suspension, steering and chassis work
  • Electrical, charging, batteries and no-start faults
  • Dash A/C and cooling system service
  • Pre-trip and post-storage mechanical inspections
  • Tow vehicles, trailers and truck campers too

Not sure if it's us?

We focus on the mechanical and chassis systems rather than coach interiors, cabinetry, plumbing or roof and body work. Call us with what's going on — if it isn't ours, we'll say so and point you the right direction. That's the fastest way to get you back on the road.

03 — Smog, diesel & fleet

Inspections under the same roof.

We're also a smog and repair station in Oxnard, and we handle California HD I/M Clean Truck Check inspections for medium- and heavy-duty diesel trucks. If you run an RV and work trucks, one shop can cover both.

04 — Questions

RV repair questions, answered.

How do the discounted RV rates work?

RV mechanical work is quoted at a reduced labor rate. Mention this page when you call and we'll give you the discounted figure with your estimate — no surprises after the fact.

Do you work on diesel pushers as well as gas coaches?

Yes. We service both gas and diesel RV chassis, along with tow vehicles, truck campers and trailers. Call with your year, chassis and engine and we'll confirm we can take it in.

Can you smog my motorhome?

We're a licensed smog and repair station in Oxnard. Whether your specific RV can be tested here depends on its registration class and size, so give us a call and we'll confirm before you drive over.

Do I need an appointment?

Yes — please call ahead. RV-sized space is limited, so scheduling makes sure there's a spot and a technician ready when you arrive.

Where are you located and when are you open?

2681 Ventura Blvd, Oxnard, CA 93036. Monday through Friday, 8:00 AM to 5:00 PM. Closed Saturday and Sunday. Free estimates on most vehicles, and shuttle service is available locally.

Bring the big rig to the big dog.