ven if old car satisfy 70% with exception of paper work, deal would be good.
I agree with you.
Here are some more tips:
Its better to avoid a Diesel car which run more than 1,50,000Kms.
Never pay anything extra for the After market fitments like Music System unless you know about the Brands as nobody leaves a JBL 75.4 Amp when selling their cars!!!
Be very careful about Oil Leak/Fuel Leak as it may cost you a Bomp to repair.
If the car crossed 75,000 kms, be prepared to spend atleast Rs. 30,000 on the Car, unless the previous owner changed the Clutch Plates/Brake Shoes/Timing/Alt/Fan Belts/Suspension pushes/Fuel Filters/Decarb and oils.
Some of the reasons why people sells their cars:
1. It met an Accident. Learn or speak to a mechanic to find it how.
2. It may overrun a PIG. stupids, just let me to buy that car!!!
3. Badly maintained/Dead Engine. Wrong Compression/Injector fault. Drive another car of the same Brand/type/engine/age to compare.
4. Oil/Fuel Leak
5. A/C Compressor or Alternator or Brake Booster or ECU or Starter Motor or GearBox or Distributor Pump or TurboCharge or Intercooler or Catalytic Converter or Power Steering Pump/Gear Failed. Bring a Mechanic with you or call your friend who has some good knowledge about car.
If you cant find any of the above reasons, just look the externals & buy the Car.
You can even buy the car if it has problems like Clutch Wear, Weak Suspension, Low Brakes, less A/C Cooling, failed electrical/electronic parts. But reduce the cost from the car value or search for a better alternative.
Check the A/C System & Cooling Condition. If it has bad cooling, check for Bubbles in A/C Hose Pipe. If the Gas is Full, check for leakages. If you can’t find any problem, but bad cooling, there may be a faulty compressor. Don't buy the car unless you are sure that the compressor is not faulty or reduce the car value upto Rs. 20,000
Check the Brake System. If it has booster brake, check the Vacuum Booster. Switch off the engine and Brake repeatedly till the brake Pedal stops/stalls at one position. Start the engine while the brake pressed. You should feel the pedal depress slightly as engine vacuum enters the booster and the brake pedal should release completely. Also Pump the Brake while the engine is running. It should not stall for atleast 5 full pumps, even if the car has no Vacuum Reservoir. (If not your booster is faulty and reduce Rs. 10000 from the car value).
Check for Clutch wear. Run the car at high speed and it should go faster as much as you accelerate. Listen for the engine speed increasing (RPM) but your road speed(KMPH) staying constant. With the car stationary and a clear road in front of you, engage fourth gear and try to set off without stalling the engine, if the car just stalls no matter how much power you put on then the clutch is OK do not try this more than 2 times. If it has weak clutch, Reduce Rs. 10000
Check the suspension status of the car. Run in the middle of the road and the car should not slope at one side. Run through no-road and the car should not jump like a city bus. Push down on top of the wing each side (individually) just once and let go, the vehicle should go down and come back up once and stay put. If the vehicle bounces up and down and appears soft this indicates a faulty shock absorber strut. If it has bad suspensions, reduce Rs. 20000 from the car value.
Check the remaining life for the car tyres. If they are already dead, reduce Rs. 20000 from car value.
And the credit should go to Team-BHP, I just re-compiled some posts with my experience.