Auto Repair Services in Oxnard, CA
One family-owned shop on Ventura Blvd for nearly everything your vehicle needs — repair and maintenance, smog and Clean Truck Check, diesel and fleet work, RV chassis service, European specialists, and quality used cars next door.
Mon–Fri 8am–5pm · Sat 9am–1pm · 2681 Ventura Blvd, Oxnard · Loaners & shuttle available

One shop for cars, trucks, fleets and European vehicles
Dieter's Motors has been fixing cars on Ventura Blvd in Oxnard since 1972. We are still family-owned, and we still work the same way: find the real problem, explain it in plain English, and give you an honest estimate before any work starts. Free estimates are available on most cars, and repairs are backed by warranty.
Our ASE-certified technicians use factory-level diagnostic scan tools on every make — daily commuters, pickups, SUVs, diesel work trucks, Sprinter and Metris vans, fleets and motorhome chassis. European vehicles are a specialty: the sign out front reads "Independent repair of Mercedes · Volvo · BMW," and we work on Porsche and Mini too. We are also a smog and repair station and an official CARB Clean Truck Check test station, so testing and repairs happen under one roof. Whatever you drive, the same team handles it from first look to final road test.
Not sure where to start? A warning light is a good reason to book car diagnostics, and the $59 smog check covers cars, vans and light trucks. Need a replacement vehicle instead? Our sister lot, Dieters Motors Sales, sells inspected used cars at the same address. Loaner vehicles and a local shuttle serve Oxnard, Camarillo, Ventura, Port Hueneme and the rest of Ventura County.
What we do
Six kinds of work, one address. Pick a category below or jump to the full directory of services.
Repair & Diagnostics
Check-engine lights, brakes, engine, transmission, electrical, A/C, steering and suspension on all makes.
Maintenance
Oil changes and scheduled service by the manufacturer's schedule, with inspections that catch problems early.
Smog & Clean Truck Check
$59 smog checks and $99 official CARB Clean Truck Check testing — test and repair under one roof.
Diesel, Fleet & RV
Diesel repair, fleet accounts with reduced labor rates, and RV mechanical and chassis service.
European Specialists
Mercedes-Benz, BMW, Porsche, Volvo and Mini — including Sprinter and Metris vans.
Used Car Sales
Dieters Motors Sales at the same address. Every car can be inspected by our shop. See used cars.
Every service we offer
Every page on our site, grouped by type of work. Call (805) 485-1575 if you don't see what you need — we probably do it.
Repair & maintenance
Smog & inspections
Trucks, fleet & RV
European specialists
Used car sales
Not sure what you need? Start here
- Warning light on the dash — car diagnostics
- Squealing, grinding or a soft pedal — brake repair
- No-start or dead battery — electrical repair
- A/C blowing warm — car A/C repair
- DMV smog notice — smog check
- Diesel truck over 14,000 lbs GVWR — Clean Truck Check
Why Oxnard has trusted us since 1972
- Family-owned since 1972 Five decades in the same Oxnard location. We earn repeat customers, not one-time tickets.
- ASE-certified, factory-level tools Certified technicians and dealer-level scan tools for domestic, Asian and European vehicles.
- Test & repair under one roof Smog station, Clean Truck Check station and full repair shop at one address.
- Loaners & shuttle Loaner vehicles and a local shuttle keep you moving while we work.
Based on online reviews from Ventura County drivers — many with us for decades.
“Been coming to Dieter's for over 15 years and they are the best — always straight shooters who go above and beyond with exemplary service.”
“Outstanding, family-owned. Honest, thorough and knowledgeable. Large parts inventory, quick turnaround, fair prices.”
“After trying several other shops, I relaxed when I found Dieter's. Now I have a Mercedes, I'm heading back.”
What kinds of vehicles does Dieter's Motors work on?
All makes and models: cars, SUVs, pickups, diesel trucks, Sprinter and Metris vans, fleet vehicles and RVs. We are European specialists for Mercedes-Benz, BMW and Porsche and also work on Volvo and Mini. For RVs we handle the mechanical and chassis side, not coach interiors, plumbing, roofs or body work.
Do you give free estimates?
Yes, free estimates are available on most cars. For problems that need testing first, such as an intermittent electrical fault or a check-engine light, we diagnose the cause and give you a written estimate before any repair begins, so there are no surprises on the bill.
How much is a smog check in Oxnard?
A smog check at Dieter's Motors is $59 for cars, vans and light trucks. We are a smog and repair station, so if a vehicle fails we can diagnose and repair it here. Medium- and heavy-duty diesel trucks over 14,000 lbs GVWR need a CARB Clean Truck Check instead, which we test for $99.
What are your hours and where are you located?
We are at 2681 Ventura Blvd, Oxnard, CA 93036. Hours are Monday through Friday 8 AM to 5 PM and Saturday 9 AM to 1 PM; we are closed Sunday. Call (805) 485-1575 or book online. We serve Oxnard, Camarillo, Ventura, Port Hueneme, El Rio, Saticoy, Santa Paula and Moorpark.
Do you offer loaner cars or a shuttle?
Yes. We offer loaner vehicles and a local shuttle so you are not stranded while your car is in the shop. Let us know when you book that you will need a ride or a loaner and we will plan for it.
Do you have fleet accounts for businesses?
Yes. Businesses running two trucks or twenty get a reduced labor rate, priority scheduling, per-vehicle service history, consolidated invoicing and compliance-deadline reminders, with the same technicians working on your vehicles every time. Landscapers, contractors, delivery fleets and owner-operators use us. Call (805) 485-1575 and ask for Joel.
Do you sell used cars?
Yes. Dieters Motors Sales sells used cars at the same 2681 Ventura Blvd address, and every car can be inspected by our service shop. Browse inventory at usedcarsoxnard.com or call the sales line at (805) 321-0665. Financing options are available, and you can apply online.
Visit Dieter's Motors in Oxnard
Dieter's Motors2681 Ventura BlvdOxnard, CA 93036
Phone: (805) 485-1575
Free estimates on most cars.
Local shuttle service and loaner vehicles available while your car is in the shop. Serving Oxnard, Camarillo, Ventura, Port Hueneme, El Rio, Saticoy and all of Ventura County.
- Monday8:00 AM – 5:00 PM
- Tuesday8:00 AM – 5:00 PM
- Wednesday8:00 AM – 5:00 PM
- Thursday8:00 AM – 5:00 PM
- Friday8:00 AM – 5:00 PM
- Saturday9:00 AM – 1:00 PM
- SundayClosed
