A160 Mercedes 2001

There could be several reasons why your Daihatsu Terios is consuming too much fuel. Here are some possible causes and remedies.Driving habits: Your driving habits could be the cause of the high fuel consumption. Aggressive driving, speeding, and rapid acceleration can all increase fuel consumption. To remedy this, try driving more conservatively and avoid sudden stops and starts. Tire pressure: Low tire pressure can increase fuel consumption. Make sure your tires are properly inflated to the recommended pressure levels. Air filter: A dirty air filter can cause the engine to work harder and burn more fuel. Replace your air filter regularly to keep it clean and functioning properly. Fuel injectors: Dirty or clogged fuel injectors can cause the engine to burn more fuel. Have your fuel injectors cleaned or replaced if necessary. Oxygen sensor: A malfunctioning oxygen sensor can cause the engine to burn more fuel than necessary. Have your oxygen sensor checked and replaced if needed. Spark plugs: Worn or dirty spark plugs can cause the engine to run inefficiently and burn more fuel. Replace your spark plugs regularly to keep them functioning properly. It's important to have your vehicle inspected by a qualified mechanic to determine the root cause of the high fuel consumption. By addressing the underlying issue, you can improve your vehicle's fuel efficiency and save money on gas in the long run.

IN order to improve fuel consumption you must make the engine run more efficiently. here are the most important ways.
typical maintenance. (check the manual)

1. check air in tires
2. oil and oil filter change
3. spark plugs change (TUNE UP)
4. air filter change


you personally can do most of these things. go to local walmart and get most of these items. very easy.

good luck.

Is there a smell of gasoline? My 95 accord had two spark plugs that failed or at least not firing correctly. Change plugs back to old plugs and the problem disappeared.

sounds like clogged fuel filter, Replace filter but before you do run a bottle of STP gas treatment or injector cleaner. The fuel treatment is dual purpose, it'll also clear out any water/moisture in fuel system. This time of year with big swings in temperatures, condensation forms in fuel tanks and that could be an issue w/your Benz

Last month, my wife complained of high gas usage as well. I suddenly remembered that I had forgotten to change the air filter the last time I did the oil change. It had been over 5 months since I'd put a new one in. So, we got a new air filter, and monitored the usage, and it was back to normal again. Maybe try this?

check air mass.

try the air filter first and the intake.the spark plugs then and after all go to a garage for checking compression timing and the head gasket.

You can over-inflate your tires by about 8%, use a K&N air filter, drive 15 kph slower on the highway, accelerate slowly and never accelerate uphill, draft behind larger vehicles, regular maintenance (oil changes, spark plugs, wires, filters), use a fuel system cleaner every oil change. These can increase your fuel economy drastically, but if you are still noticing poor fuel economy you should have the car checked by a mechanic for what might be causing the high fuel consumption.

i hope this helps
matthew

ya its running very rich that why it makes that black smoke,this carbon is made because the sparks plugs does not make a good and sufficient spark,so i advice u to change the 4 spark plugs,also renew the air filter

transmission slipping dragging brakes.timing off worn timing belt .bad spark plugs + wires +coil.defected valves and worn cam shaft.use scanner to check oxygen sensor. run engine 5 minutes look at scanner . should read closed loop . if read open loop replace oxygen sensor.