aslaam o alykum..
i have santro club 2006 model.. from past few days my car is behaving unusual.. the few problems which i noticed are..
> the mileage on petrol has decresed approx. 20 km per 5 liter petrol..
>after cold start car give jerks on petrol while driving (on both bumpy and smooth road) for about 15 min of the drive..and if i off the engine and start the car after 30 or 40min the car don't give jerks and behaves normal..
>and the engine sound on idle is like some tractor or diesel engine car like sound...
>sugest me some good bulb or tubes for brighter vision as i don't want to do for hid's...
> and when i last tuned my car on petrol and cng the silver part behind the air filter cover ... is black from inside and feels like greasy or some hard dust has stuck in it.and the mechanic clean just the edges from cloth and said its normal....attaching pic. for ref..

thanks..