Audi A4 no power when accelerating

What is the reason for the lag during acceleration?
Is there a jerk a few seconds after the accelerator pedal is depressed and the car jerks? Or at the moment of acceleration, the car cannot reach the desired speed?

Having detected such problems, you should not put off fixing them for later. Slumps when overtaking passing cars on the road, do not bode well. Having detected the first signs, you can try to diagnose the problem yourself, but it is better to contact the technical center. Experienced mechanics on modern equipment will quickly find and eliminate the cause of lagging during acceleration.

Sags during acceleration, can appear at different moments:
For a couple of seconds there is no reaction after the accelerator pedal is depressed.
For 4-10 seconds the engine rpm is lost and the car may stall.
The car moves for 1-2 seconds jerkily.
The engine decelerates and speeds up when the accelerator pedal is not engaged.

Common causes for failure to accelerate:

• Worn spark plugs and high-voltage wires
• Clogged fuel injectors
• Clogged throttle valve
• Clogged air filter
• Gasoline pump malfunction

It is not uncommon for malfunctions to occur due to malfunctions in the fuel system. When accelerating, the system increases the amount of fuel supplied to the cylinders. The change in the proportions of fuel provokes sagging during acceleration. The throttle and fuel injectors should be inspected. When the choke or injectors are clogged, it can cause delayed auto response when accelerating.

Check the condition of the fuel, air and oil filters.
Filters can become clogged, resulting in poor performance and increased fuel consumption. They should be changed regularly.

Faults in the ignition system are also possible. Initially, it is necessary to take out and examine the plugs. Soot on the plugs, insufficient contact with the spark plug wires, or an overly rich or poor mixture, will cause the plugs to malfunction. High voltage wires can also cause motor and ignition coil failure. The high-voltage wires should not be damaged and should not spark when the engine is running.

To identify the exact cause of the failure to accelerate the car with an injector engine, requires special, diagnostic equipment. For this purpose it is better to contact us in car service in Moscow.

What recommends the manufacturer

• Electronic diagnostics – connection of the diagnostic scanner for reading of errors in the data logger
• If necessary, performing step-by-step troubleshooting based on the results of electronic diagnostics
• Carrying out works on the basis of the data revealed by the diagnostics

On-board computer error codes for the symptom of lagging at acceleration in the Audi A4?