Littleton, CO
Honest Auto Repair in Littleton — Free Estimates, No Surprises
Dettmer Automotive is a trusted auto repair shop in Littleton, Colorado, fixing cars and light trucks for drivers across the Front Range. We tell you what's actually wrong, explain it in plain English, and get you back on the road. Call for a free estimate — a real mechanic will pick up.
- 4.8 stars across 90+ Google reviews
- We explain the problem before we fix it
- Fair, upfront pricing — no invented repairs
- 4.8Star rating
- 90Google reviews
- LittletonColorado shop
- FreeEstimates
What we offer
What We Fix
Honest diagnostics and quality repairs — done right.
Check Engine Light & Diagnostics
That warning light finally explained — clearly and honestly.
Brake Repair & Service
Pads, rotors, and lines done right so you stop with confidence.
Oil Changes & Routine Maintenance
The regular care that keeps small problems from becoming big ones.
Engine Repair & Tune-Ups
From rough idles to no-starts, we track down what's really going on.
Transmission & Drivetrain
Leaks, slipping, and shifting problems, diagnosed before they get worse.
Heating & A/C Repair
Cold air in summer, warm air in winter — comfort you can count on.
Classic & Older Vehicle Repair
The shop other places send you to when the car's older than their scanners.
Pre-Trip & Vehicle Inspections
Peace of mind before the long drive or the big purchase.
Not sure it’s serious?
Noticing any of these? Bring it in.
These are the everyday warning signs we see most. Recognize one? A free estimate tells you exactly what’s going on — before it costs you more.
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Grinding or squealing brakes
Usually worn pads or rotors — far cheaper to catch early than to let it wear deeper.
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A warning light on the dash
A sensor caught something. We read the code and tell you what it actually means — no guessing.
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Shaking or vibration at speed
Often tires, balance, or brakes. Worth a quick look before it turns into something bigger.
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Fluid on the driveway
Oil, coolant, or transmission fluid — the color and the spot tell us where to look first.
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Slow or hard starts
Commonly a battery, starter, or charging issue — all quick and inexpensive to test.
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Odd smells or smoke
Burning, sweet, or hot smells each point somewhere specific. These are the ones not to wait on.
About Us
Honest Auto Repair in Littleton — Free Estimates, No Surprises
We built this shop on one simple idea: treat people the way we'd want to be treated with our own vehicles. That means walking you through what we find before we touch a wrench, quoting fairly, and never inventing problems to pad a bill. Drivers keep coming back — and sending their families and classic cars our way — because they know the work is done right and the price is straight. Whether it's a daily commuter, a work truck, or an older vehicle other shops won't touch, we take pride in the job and stand behind it.
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Local & reliable
Based right here in Littleton — we answer the phone and show up when we say we will.
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Honest pricing
Clear quotes, no surprises. You know what it costs before we start.
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Quality that lasts
We do the job right the first time and stand behind our work.
Good to know
Frequently Asked Questions
Do you offer free estimates?
Yes. Give us a call at (303) 781-2881 and a real mechanic will talk through your situation and get you a free estimate. We explain what we find before we do any work — no surprises on the final bill.
What are your hours?
We're open Monday through Friday, 8:00 AM to 6:00 PM. We're closed Saturday and Sunday. The best way to reach us is a quick call at (303) 781-2881.
Where are you located and what areas do you serve?
We're at 5021 S Rio Grande St, Unit B, in Littleton, CO 80120, and we serve drivers throughout Littleton and the surrounding Front Range.
Will you explain the repair before you do it?
Always. We walk you through exactly what's wrong and what it takes to fix it before we start, so you can make an informed decision. We won't invent problems or do work you didn't approve.
Do you work on older or classic vehicles?
We do — including cars and trucks older than most modern shops will take on. Plenty of our customers bring us classic and pre-computer vehicles that other places turn away.
Do I need an appointment?
An appointment helps us plan your service, so calling ahead is always a good idea. If you've got an urgent problem, call us at (303) 781-2881 and we'll do our best to get you taken care of.
Still have questions? Get in touch — we’re glad to help.
Contact
Request an Estimate
Tell us what you need and we’ll get right back to you, or call us anytime.
- Call us(303) 781-2881
- Visit / Service area5021 S Rio Grande St # B · Littleton, CO 80120
- HoursMon–Fri 8:00 AM – 6:00 PM · Sat Closed · Sun Closed