How we quote car service: GM Car AC Service Chennai
Every job here starts with the free 30-point A/C and electrical checkup. You get the figure in writing after it, and nothing is opened up or replaced until you approve that figure.
What A/C work costs depends on how much gas has gone, whether a part has failed, and whether your car has one A/C module or two. General service depends on the quantity and grade of oil your car takes. Those are things we can only know after looking, which is why the estimate comes after the checkup and not before it.
The estimate depends on car model, oil quantity, oil grade, filter condition, parts required and the work you approve. No major work starts without customer approval. Call or WhatsApp +91 84280 00085 and the team will walk you through what your car is likely to need.
What each job covers
Every job is diagnosed first. You get the figure in writing after the free 30-point checkup, and nothing is replaced until you approve it.
- 30-point A/C & electrical checkupFree
What it covers: Standalone. Any car, any age, first visit or twentieth. No purchase needed, no obligation to repair, and you leave with a written report, about 15 minutes on a booked slot
- Battery, alternator, starter and wiring checkFree
What it covers: The electrical half of the same 30-point checkup. Repairs and replacements are quoted after inspection
- AC Gas Filling: Single ModuleQuoted after the checkup
What it covers: Leak check and vacuum before filling. R134a or R1234yf, whichever your car takes
- AC Gas Filling: Double ModuleQuoted after the checkup
What it covers: For cars with a front and a rear A/C unit, which hold more gas than a single-module car
- A/C Gas + Airflow RefreshQuoted after the checkup
What it covers: Gas fill with leak check, cabin filter and vent airflow service, plus a vent temperature check. A double-module car, or a filter we have to order in, changes the job, the total is confirmed at the counter before work starts.
- Essential ServiceQuoted after the checkup
What it covers: Engine oil and filter, 25-point safety check and exterior wash
- Petrol General ServiceQuoted after the checkup
What it covers: Oil, filter, brake, suspension and clutch checks, plus the free 30-point A/C and electrical checkup. The quantity and grade of oil your car takes moves the figure.
- Diesel General ServiceQuoted after the checkup
What it covers: Same scope as the petrol service, for diesel vehicles. The quantity and grade of oil your car takes moves the figure.
- AC DiagnosisCall/WhatsApp to confirm
What it covers: Based on symptom and inspection
- Compressor RepairEstimate after diagnosis
What it covers: Repair or replacement confirmed after inspection
- Cooling Coil ServiceEstimate after diagnosis
What it covers: Cleaning or replacement based on condition
- Electrical DiagnosisEstimate after diagnosis
What it covers: Wiring, relay, fuse, sensor and scanner checks
- Fleet ServiceCustom quotation
What it covers: Based on vehicle count and service frequency, see Fleet & B2B
- Free 30-point A/C & electrical checkup, no purchase needed
- In writing The estimate, before anything is opened up
- Your call No part is replaced until you approve it
- About 15 min The checkup itself, on a booked slot
Prefer an annual plan?
GM Cool Care Plans bundle A/C, general service and electrical checkups for the year. A/C Protect covers A/C inspection only, with no gas filling; Essential adds one gas refill and one Essential Service; Complete adds a general service with an oil change and a midpoint service, in petrol and diesel versions; Master adds a post-monsoon inspection, pick-up and drop priority, 15% off parts and a digital service record. Plans are priced when you enrol, by WhatsApp or at the workshop.
Compare GM Cool Care Plans₹199 off, three ways to get it
- First visit: ₹199 off your first approved paid service with us.
- Returning customer: ₹199 off your next approved paid service.
- Referral, your friend gets ₹199 off, and you get a ₹199 service credit on your next approved service once theirs is done.
On approved paid work above ₹1,500, never on the free checkup alone. One per customer, one offer per bill. Not combined with a GM Cool Care plan, and not available on fleet or business accounts. The referral credit is valid 12 months against future work and is not paid in cash.
Fleet & B2B Desk
Taxi operators, used-car dealers, school vans, travel companies and business vehicle owners get a custom quotation based on vehicle count and service frequency.
Call Fleet & B2B Desk Explore Fleet ServiceHow we quote: common questions
An A/C gas fill is more than the refrigerant, which is why the figure is not a flat rate. What A/C gas filling costs and what the price covers explains what a module is, why the leak check is part of the job, and when a refill is the wrong repair to buy.
What does car AC gas filling cost in Chennai?
It depends on how much gas has gone, whether there is a leak to repair first, and whether your car has one A/C module or two. We run the free 30-point checkup, then give you the figure in writing. Call or WhatsApp +91 84280 00085 and we will tell you what your car is likely to need.Why does this page not list a fixed cost for each service?
Because the honest figure depends on the car in front of us: the oil quantity and grade it takes, the condition of its filters, whether a part has failed, and how much refrigerant has gone. Quoting before the checkup would mean guessing, and a guess that moves later is worse than a straight answer after 15 minutes of looking.Can the figure change after you give it to me?
Only if the work changes, and only with your approval. The written estimate lists parts and labour separately. If the checkup uncovers something else, we come back to you with a revised figure before touching it.
Get Your Exact Estimate
Share your car model and the issue on WhatsApp, or call, and the team will confirm the figure before any work starts.
Call +91 84280 00085 WhatsApp for a Quote Get DirectionsGet Your Free 30-Point Checkup
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Pricing questions
What does car AC gas filling cost in Chennai?
It depends on how much gas has gone, whether there is a leak to repair first, and whether your car has one A/C module or two. We run the free 30-point checkup, then give you the figure in writing. Call or WhatsApp +91 84280 00085 and we will tell you what your car is likely to need.
Why does this page not list a fixed cost for each service?
Because the honest figure depends on the car in front of us: the oil quantity and grade it takes, the condition of its filters, whether a part has failed, and how much refrigerant has gone. Quoting before the checkup would mean guessing, and a guess that moves later is worse than a straight answer after 15 minutes of looking.
Can the figure change after you give it to me?
Only if the work changes, and only with your approval. The written estimate lists parts and labour separately. If the checkup uncovers something else, we come back to you with a revised figure before touching it.
Tell us what the car is doing
We will call you back to confirm a slot. Nothing is charged and nothing is booked until we have spoken.
Customer Service · Individual car owners. Mon–Sat 10:00 AM – 8:00 PM, Sunday closed. Prefer not to call? The form takes a minute.

Illustrative image. Not a photograph of GM premises, staff or a customer vehicle.