Mechanical · Tooting SW17

Air Conditioning Regas near Tooting

Slow traffic on Garratt Lane and around Tooting Broadway gives a car's air conditioning little help from moving air. Our Hackbridge workshop is about 18 minutes from Tooting, and a regas with a vacuum and leak test takes around 45 to 60 minutes.

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~18 min from Tooting
Mon–Sat 8am–8pm

Range Rover Velar in for cooling system work at KITH Cars Garage & Bodyworks, Hackbridge

Air Conditioning Regas for Tooting drivers

Tooting Broadway traffic and air con that fades in the queue

Almost every drive out of Tooting starts at walking pace. Garratt Lane heading towards Summerstown, the A24 through the Broadway, Mitcham Road past the Granada: all are slow and bus-heavy, and Wandsworth's 20mph limits cover nearly every road. At low speed, the air conditioning condenser relies on the radiator fan to shed heat, so any shortfall in the refrigerant charge shows up as warm air from the vents. Out on the open road the same system might seem fine, which is why owners are often surprised when we find it well short of its specified charge.

Tooting also has its own parking pattern. Controlled parking zones around the Broadway run Monday to Saturday, and many cars in Furzedown and around Tooting Commons are used mainly at weekends. An air con system that is barely run tends to lose refrigerant through seals that dry out, because the oil that keeps them supple only circulates when the compressor works. That is why a car with low mileage can still arrive with a weak charge.

Our regas starts by confirming the refrigerant type, since smaller city cars and newer SUVs locally may use either R134a or R1234yf. We recover and weigh the old gas, pull a deep vacuum to remove moisture, and watch the gauge to confirm the system holds. Only then do we recharge by weight with the correct oil, test the vent temperature and check the compressor is cycling normally. If it will not hold vacuum, we explain the likely leak and quote in writing before any repair.

The drive down is straightforward: Mitcham Road east past Tooting station into Mitcham, through the Figges Marsh signals, round to the Cricket Green, then Cranmer Road and Carshalton Road south to Hackbridge. It is about 18 minutes. If you work shifts at St George's or cannot spare the time, collection can be arranged. Should a repair be needed, it comes with a 3-month workmanship warranty.

Mechanical

Air Conditioning Regas: what’s involved

Car air conditioning works by pumping refrigerant round a sealed circuit. The compressor, driven by the engine or, on hybrids and electric cars, an electric motor, squeezes the refrigerant into a hot, high-pressure gas. It cools and condenses in the condenser at the front of the car, then expands through a valve into the evaporator behind the dashboard, where it absorbs heat from the air blowing into the cabin.

Cars built before around 2013 almost all use R134a. Most cars from about 2017 onwards use R1234yf, which has a far lower environmental impact, and some models switched earlier. The two are not interchangeable and need different equipment. Every system loses a little refrigerant over time through seals and hoses, so cooling gradually fades. The refrigerant also carries the compressor's lubricating oil, so running low affects more than comfort.

From £49Written quote first

45–60 minutesTypical time in the workshop

3 monthsWorkmanship warranty

4.9★87 Google reviews

Signs your air conditioning needs attention

Air not as cold as it was

Gradually weaker cooling over a few summers usually means the refrigerant charge has dropped, which a regas can put right.

Only cold at speed

Cooling that is fine on the move but weak at idle can point to a low charge, a condenser fan fault or a blocked condenser.

No cold air at all

If the air is warm, the system may be nearly empty and the compressor won't engage. A fast loss like this points to a leak that should be found first.

Windows slow to demist

The air conditioning dries the air, which is why it clears a misted windscreen quickly. Weak demisting can be a sign the system isn't working.

Noise when the AC is on

A rattle, grind or squeal when the air conditioning switches on can point to a worn compressor, compressor clutch or drive belt.

Musty smell from the vents

A damp, stale smell often comes from bacteria on the evaporator or a dirty cabin filter rather than the refrigerant itself.

Compressor clutch not engaging

On belt-driven compressors, the clutch on the front should click in when you press the AC button. If it doesn't, the pressure may be too low or there is an electrical fault.

When should it be done?

Most systems benefit from a regas every two to three years, as some refrigerant escapes naturally through seals and hoses. Book sooner if you notice cooling getting weaker. If the air conditioning has stopped cooling within weeks or months of a previous regas, there is a leak, and topping it up again will only waste refrigerant. In that case we recommend a leak test with UV dye before recharging.

Every 2–3 years as general maintenance
When cooling becomes noticeably weaker
Before summer if you had weak cooling last year
After any repair that opens the system, such as a new condenser or compressor
Leak test first if cooling was lost soon after a previous regas

How we regas air conditioning

Check-in and refrigerant typeWe check the label under the bonnet to confirm whether your car uses R134a or R1234yf, and the quantity the manufacturer specifies.
Performance checkWith the engine running we check vent temperature, compressor engagement and the condenser fan, and look for obvious damage or oily leak marks.
Recover old refrigerantOur machine recovers the remaining refrigerant and weighs it, which tells us how much the system had lost. Refrigerant is never vented into the air.
Vacuum and leak testThe system is held under vacuum to boil off moisture, then monitored to see if it holds. A system that loses vacuum has a leak and needs repair before recharging.
Recharge by weightWe refill with the exact weight of refrigerant the manufacturer specifies, plus the correct compressor oil. UV dye can be added to help trace slow leaks later.
Test and verifyWe run the system and check vent temperature and pressures to confirm it is cooling properly and the compressor is cycling normally.
HandoverWe tell you how much refrigerant was recovered and whether that suggests a leak, so you know if further investigation is worthwhile.

Refrigerant and oils we use

We use the refrigerant your car was designed for, either R134a or R1234yf, and charge it by weight to the manufacturer's figure, since overfilling is as bad for performance as underfilling. The compressor oil must match too: PAG oil of the correct grade for most belt-driven compressors, and POE oil for many hybrid and electric cars with electric compressors, because the wrong oil can damage them. Replacement parts are OE or OE-equivalent.

R134a or R1234yf refrigerant, matched to your car
Compressor oil to the correct type and grade, including POE for electric compressors
UV leak detection dye where appropriate
OE or OE-equivalent condensers, compressors, valves and seals, quoted separately

How long it takes

45–60 minutes

A straightforward regas takes around 45–60 minutes including the vacuum and leak test. If a leak is found, finding and repairing it takes longer and may need parts ordering.

What’s included

Refrigerant type and system check
Recovery and weighing of old refrigerant
Vacuum and leak-down test
Recharge by weight to manufacturer specification
Compressor oil top-up
Vent temperature and performance test

Getting here from Tooting

From Tooting to our Hackbridge workshop

From Tooting Broadway take Mitcham Road (A217) east past Tooting station; it becomes London Road into Mitcham, through the signalised Figges Marsh junction and around the town centre one-way system to the Cricket Green. Take Cranmer Road (A239) to Carshalton Road (A237) and head south past Mitcham Junction; past Beddington Corner it becomes London Road into Hackbridge, where Soho Mills is near Hackbridge station.

Take Mitcham Road (A217) east through Mitcham to the Cricket Green, then Cranmer Road and Carshalton Road (A237) south into Hackbridge, about 18 minutes. Collection can be arranged if the drive does not suit.

Directions from Tooting

About Tooting

Tooting is a lively, densely built district of south-west London centred on Tooting Broadway and Tooting Bec, two Northern line stations at the bottom and top of the hill. Its streets are mostly Victorian and Edwardian terraces, including the Totterdown Fields estate, the first London County Council cottage estate, with larger houses towards Tooting Bec Common and Furzedown. It has a celebrated food scene along Upper Tooting Road and two indoor markets, and a big workforce at St George's Hospital. Driving is busy and slow on the main roads, with narrow, heavily parked side streets.

Places nearby: St George's Hospital, Tooting Bec Lido, Tooting Commons, Granada Tooting, Broadway Market, Tooting Market

Postcodes: SW17 · London Borough of Wandsworth

More about KITH for Tooting drivers

Questions

Air Conditioning Regas in Tooting: your questions answered

My car hardly moves from its CPZ bay. Can the air con still lose gas?

Yes. Refrigerant seeps slowly through seals and hoses whether the car is used or not, and unused systems can lose it faster because the seals dry out. A regas every two to three years, and regular use, keeps it working.

I work at St George's. Can you fit around my shifts?

We are open 8am to 8pm Monday to Saturday, which helps with early and late shifts. Collection and delivery can also be arranged, and a straightforward regas takes about an hour.

Is there a quicker way from Tooting than through Mitcham town centre?

The Mitcham Road and A217 route is the most direct, and it takes you round Mitcham's one-way system rather than through the Fair Green bus-only stretch. Outside peak times it is usually about 18 minutes.

Which refrigerant does my car use?

Check the sticker under the bonnet, usually on the slam panel or near the radiator. As a rough guide, most cars before about 2013 use R134a and most from about 2017 use R1234yf, with some models changing in between. We always confirm before starting.

Can R134a be put in an R1234yf system, or the other way round?

No. The systems use different service connectors, different oils and are designed around different pressures and properties. Mixing or converting refrigerants isn't something a reputable garage should do.

Will a regas fix a leak?

No. A regas refills the system, but if it is leaking the charge will drop again. If cooling disappeared quickly after a previous regas, we recommend a leak test with UV dye so the leak can be found and repaired first.

Why does the price differ between cars?

R1234yf is considerably more expensive than R134a, and systems hold different amounts of refrigerant. We confirm the refrigerant type and the price before we start work.

Should I run the air conditioning in winter?

Yes. Running it for a few minutes regularly keeps oil circulating to the compressor and seals, and it dries the air so the windows demist faster. Many cars run it automatically when you select demist.

Instant quote

Price your air conditioning regas now

Enter your reg and we’ll look up your car and price the job from our own labour rates and the book time for your model. Then book it in with a fixed written quote before any work starts.

Free, about 30 seconds, no sign-up
Parts, labour and VAT included
3-month workmanship warranty
Collection from Tooting can be arranged

“It’s rare to find a garage you can truly trust. Fair price, brilliant customer service.”Thinushan K. · ★★★★★ Google

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