Suzuki Mehran Ac Issue

[Fazzie]

Never use a coolant in Mehran???????? Are you serious

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yes.. coolant which is available in market e.g ( osaka ) creates this muddy type calcite on the hose pipes ...clogs up the radiator with carbon

[hassnainsethi89]

I personally think that you need an expert radiator guy

[zoobi1]

Anyone with good skills in Rawalpindi,I am planning to visit for some work.Please recommend a good skillful radiator guy along with his contact no if possible.

[aamirahsan89]

Anyone with good skills in Rawalpindi,I am planning to visit for some work.Please recommend a good skillful radiator guy along with his contact no if possible.

go to chor chowk, Abid: 03215285169.

Tell him your issue, he shall resolve it. he is an ac mechanic and has a radiator guy right besides him. the ac guy can easily identify the issue

[Thinking]

Thanks for your valuable feedback!
Please add some pictures of the compressor you are talking about,also how much it will cost?

Please find relevant details in the topic below along with pics.

https://www.pakwheels.com/forums/air-conditioning-heating-ventilation/253394-installation-aftermarket-ac-mehran-2006-a-3

change radiator and relevant piping and install properly working radiator fan along with thermostat valve. should resolve the issue.

also share the details of the condensor you are using. usually smaller condensors put more load on the car.

[zoobi1]

Please find relevant details in the topic below along with pics.

https://www.pakwheels.com/forums/air-conditioning-heating-ventilation/253394-installation-aftermarket-ac-mehran-2006-a-3

change radiator and relevant piping and install properly working radiator fan along with thermostat valve. should resolve the issue.

also share the details of the condensor you are using. usually smaller condensors put more load on the car.

Bro i've just installed the same setup like yours,but with black one condenser.Still having the heat up issue.How was your experience in midday?

[shegg4]

You must change your compressor & also road side ac machenic fill wrong gas mostly in the cooling system.
Do check if the gas is R16 than its ok otherwise your car will take load when ac turned on and result will be heating isuue & even gaskit burn.

[Thinking]

Bro i've just installed the same setup like yours,but with black one condenser.Still having the heat up issue.How was your experience in midday?

No heat up issue at any time of the day.

black condensor shouldnt cause heatup. which gas did u put in?

do u feel any dramatically higher load on the engine when u turn the AC on?

[zoobi1]

No heat up issue at any time of the day.

black condensor shouldnt cause heatup. which gas did u put in?

do u feel any dramatically higher load on the engine when u turn the AC on?

no idea about gas,and yes it put a lot of load on engine as AC is on.

[Thinking]

no idea about gas,and yes it put a lot of load on engine as AC is on.

than probably the issue is the compressor u got. did ur mechanic put the correct oil in the compressor before installing and making it run?

as per my experience scroll type compressor doesnt put any load and once u turn on the AC, it is hardly noticeable.

[ahmed2396]

Clogged Condenser and bad compressor most probably.

[turbo_charge]

the radiator ur using is not copper ... buy lords or loads( dont know exact name) radiator they r usually copper one n direct ur radiator fan n remove thermostat valve in summer only if ur using ac n then place it when winter arrives..also check ur condenser the main problem for ur car to have high temperature is because of a faulty condensor get it fixed or replaced..also check gaskit...make sure to clean ur condensor with spray fresh water almost everyday to give max performance in ac n for heavensake never use a coolant in mehran its going to destroy ur car quickly n completely just use water

Sir ,
I STRONGLY DISAGREE with YOUR OPINIONS..
Regards

[ahsanonline]

yes.. coolant which is available in market e.g ( osaka ) creates this muddy type calcite on the hose pipes ...clogs up the radiator with carbon

Dump osaka. Go for minimum Zic premixed (order online from zicoil.pk). There are other coolants out there but they're expensive and get wasted if you don't have a leaktight, mechanically-reliable cooling system.

1. Get all flushed.
2. Make sure all is mechanically sound (no leaks; pipes not blocked including the big metal pipe that runs down the side/back; water pump should circulate well - if you have been using plain water or 'green' coolant then change pump once and get everything done right).
3. Then drain all existing from both block as well as radiator.
4. Fit thermostat valve. Without this valve your cooling system has a 'short', much like an electrical short-circuit...coolant goes around the engine without even going through the radiator.
5. Then add new Zic to both block and radiator.
6. Make sure fan is on auto.

As for your AC system, I'm dead sure the roadside mechs didn't do the procedure well. They usually fill the system with air to pressure test (kills the dryer), then don't vacuum the system correctly (kills system efficiency) and then overfill the system - sometimes with not-pure-freon (final nail in the coffin). Only way to judge would be to have the see low+high side pressure readings (with ambient temperature reading+AC vent air temperature readings) under certain conditions such as here and here and here. An undercharged/overcharged system puts a lot of unnecessary load on system.

ALSO, going for a used condenser is like buying used underwear (ewww!). I hope you didn't get a used condenser. Small tubes become partially blocked resulting in increased load. I'd say put the cooling system in shape, then mess with the other stuff.

You must change your compressor & also road side ac machenic fill wrong gas mostly in the cooling system.
Do check if the gas is R16 than its ok otherwise your car will take load when ac turned on and result will be heating isuue & even gaskit burn.

Why using R16? Is this specific system designed for R16?

Thanks for your interest
No sir,thermostat valve is not installed.

"Kill me please" - said the engine.

[saboor73]

Dump osaka. Go for minimum Zic premixed (order online from zicoil.pk). There are other coolants out there but they're expensive and get wasted if you don't have a leaktight, mechanically-reliable cooling system.

1. Get all flushed.
2. Make sure all is mechanically sound (no leaks; pipes not blocked including the big metal pipe that runs down the side/back; water pump should circulate well - if you have been using plain water or 'green' coolant then change pump once and get everything done right).
3. Then drain all existing from both block as well as radiator.
4. Fit thermostat valve. Without this valve your cooling system has a 'short', much like an electrical short-circuit...coolant goes around the engine without even going through the radiator.
5. Then add new Zic to both block and radiator.
6. Make sure fan is on auto.

As for your AC system, I'm dead sure the roadside mechs didn't do the procedure well. They usually fill the system with air to pressure test (kills the dryer), then don't vacuum the system correctly (kills system efficiency) and then overfill the system - sometimes with not-pure-freon (final nail in the coffin). Only way to judge would be to have the see low+high side pressure readings (with ambient temperature reading+AC vent air temperature readings) under certain conditions such as here and here and here. An undercharged/overcharged system puts a lot of unnecessary load on system.

ALSO, going for a used condenser is like buying used underwear (ewww!). I hope you didn't get a used condenser. Small tubes become partially blocked resulting in increased load. I'd say put the cooling system in shape, then mess with the other stuff.

nice finally we are having experts here

[turbo_charge]

Being a professional water treatment expert.. I took sample of my coolant from radiator and checked iron and copper contents in it.. Ph and conductivity of water.. Result are amazing.. Copper and iron residuals are within limits. And coolant color is still fresh and neat..
Using Osaka coolant. Fill whole circuit with coolant 4 months before...
Rust is coming from radiator because your radiator is previously runs in water or has rust in it.. Which on being pressure and high temperature dissolved in coolant..

[turbo_charge]

Mehran 2012 vxr, ac always on. No heat up issues at all.. ALHAMDULILAH.
Before this I used Suzuki coolant which forms rust just after 2 months. Because my radiator needs to be cleaned. After cleaning I poured Oksana coolant in it. Still like new and neat after 4 months.

[turbo_charge]

Any one needs to test it's radiator water sample contact me in isb..

[Fazzie]

Sir ,
I STRONGLY DISAGREE with YOUR OPINIONS..
Regards

Copper is an excelent heat conductor better than aluminum or any other material n besides its geniune using an after market radiator is like experimenting with mehran

[Fazzie]

Mehran 2012 vxr, ac always on. No heat up issues at all.. ALHAMDULILAH.
Before this I used Suzuki coolant which forms rust just after 2 months. Because my radiator needs to be cleaned. After cleaning I poured Oksana coolant in it. Still like new and neat after 4 months.

Ur using a newer model mehran keep using n changing that coolant for 3 yrs then u will know what im talking about...

[turbo_charge]

Copper is an excelent heat conductor better than aluminum or any other material n besides its geniune using an after market radiator is like experimenting with mehran

I agree with use of copper radiator.. But I am not agreed to remove thermostate valve,fan direct and to use just tap water.. U will ruin ur copper radiator in months..
Logic:
upon heating salt from water like calcium carbonate undissolved from water and precipitate on the metal surface causing heat transfer resistance.. And forms scale and foulants.. And these salts keep on increasing with cycles. You can't avoid these. Even if u use demineralized water which has minimum salts you must have to use chemicals.
Chemicals makes sure that these salts remains in dissolved format in water and do not precipitate out.. That's how a coolant works..