🚗
Vignesh Vicky
Hyundai i20 Owner
★★★★★
Cooling Coil Issue
The Workshop That Diagnosed What Others Missed
The Problem
AC not cooling · Multiple workshops visited · No diagnosis found
My car AC had completely stopped cooling during peak Chennai summer. I visited multiple workshops in the area. Everyone quoted very high amounts without actually identifying what was wrong. Some said compressor. Some said gas leak. No one seemed to actually know. I was frustrated and skeptical when a friend suggested GM Car A/C Service.
The Solution
Within 15 minutes of arrival, their technician had done a systematic pressure and temperature check and identified the exact problem: the cooling coil (evaporator) needed replacement. No guesswork — a precise, evidence-based diagnosis.
"Completed in 8 hours at a fraction of what others had quoted. Feels like a brand new car. I wish I had come here first."
Evaporator (Cooling Coil) Replacement
Same-Day Completion
Honest Pricing
🔍
Sunil GV
Honda City Owner
★★★★★
Micro Leak Found
The Minute Hole That Defeated Every Other Mechanic
The Problem
AC repeatedly failing · Multiple part replacements · Still not fixed
I had spent a significant amount of money at my previous mechanic. He changed the compressor. He changed the condenser. He changed the expansion valve. Every time, the AC worked for a few weeks then failed again. Two months, three visits, four parts replaced — and still no fix. It seemed like an impossible problem.
The Solution
GM Car A/C Service did an advanced leak detection inspection using both UV dye and an electronic refrigerant detector. They found what no one else had: a minute pinhole in the refrigerant hose — invisible to the naked eye, undetectable without proper equipment. One precise hose repair. Problem solved.
"Writing this after 2 months of perfect, uninterrupted cooling. I cannot believe such a small hole caused all that trouble — and that GM found it where no one else could."
Electronic Leak Detection
AC Hose Repair
2 Months Verified Perfect
👤
Akash V
First-Time Car Owner
★★★★★
Full Transparency
No Jargon. No Upselling. Just Honest Service.
The Challenge
First car · No knowledge of AC systems · Worried about being overcharged
I bought my first car and the AC wasn't working properly. As someone with zero knowledge about car systems, I was worried about walking into a workshop and being told I needed expensive repairs I couldn't verify. A friend who had used GM Car A/C Service recommended them highly.
The Experience
The technician walked me through every component he was checking and explained what each one does — in plain language, not technical jargon. He showed me the actual state of my AC system. When it came to the repair, he only recommended what was genuinely needed and explained why. The bill matched the estimate exactly.
"Charged only what was fair. Explained everything clearly. As a first-time car owner, I couldn't have asked for more. This is my workshop now."
Clear Explanation
No Upselling
Transparent Pricing
🚌
Ramesh Kumar
Fleet & Bus Owner
★★★★★
Commercial Fleet
The Workshop That Handles Commercial Fleets Too
The Problem
Tempo Traveller roof AC not cooling · Most workshops refused the job
I have a small fleet of Tempo Traveller mini buses used for tourism. When one of them had AC issues, I called several workshops in Ambattur. Most said they don't handle commercial vehicle AC, or they quoted without even looking at the vehicle. Finding someone who actually knows commercial vehicle AC systems was frustrating.
The Solution
GM Car A/C Service handled the roof-mounted AC system on our Tempo Traveller with complete confidence. Their technician knew the system, diagnosed the compressor issue within an hour, and had the vehicle back on the road the same day. I now bring all my fleet vehicles here for annual service.
"Back on road same day. The only workshop in Ambattur that genuinely handles commercial vehicle AC. Now my regular service partner for all fleet vehicles."
Commercial Vehicle AC
Same-Day Turnaround
Fleet Service Partner
What makes GM Car A/C Service different from other workshops in Chennai?
Every story on this page has one thread in common: precision over guesswork. At GM Car A/C Service, we don't swap parts and hope the problem goes away. We diagnose first — using the right tools, the right training, and 7+ years of hands-on experience with every car brand and AC system type in Chennai.
- We find the real cause — not just treat symptoms
- We explain everything — you always know what's being done and why
- We quote honestly — the price you hear is the price you pay
- We use genuine parts — no compromises on quality
- We stand behind our work — warranty on parts and labour
Call +91 8428000085 to become one of our next 6000+ success stories.
Your Success Story Starts with One Call
Whether your car AC has a simple gas issue or a complex fault no one else could solve — GM Car A/C Service has the expertise, equipment, and honesty to fix it right.
Same-day service · Free pick-up & drop · Transparent pricing · Warranty backed.
No:16 Gangai Amman Kovil Street, Kallikuppam, Ambattur, Chennai 600053 · Mon–Sat 10AM–8PM