Audi A4, 58 plate, 2ltr, 211ps version, ecs and epc warning lights flickered and then came on together, engine running lumpily at low revs (<2000rpm), any ideas anybody?

Question edited for clarity.
Question moved to Audi A6

The most common causes of an EPC light showing up on your Audi or VW are a faulty throttle body, a faulty ABS sensor, a cracked ABS ring, or a faulty brake pedal switch. Here are a few of the issues that could trigger the EPC light.
Jan 13, 2022

EPC Light On VW & Audi - Meaning, Causes (Fast Fixes)

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Computers are taking over everything on your vehicle. Traditionally, components like the steering, the parking brake, and the gas pedal used to require mechanical linkages. Nowadays, computers and electric motors can take care of all of these functions and more.
Electronic Power Control (EPC) is a computerized ignition and engine management system. It is used by other systems on the car such as stability and cruise control. Any faults with the EPC will likely disable other functions on your vehicle so it is important to keep the system maintained and functional. A warning light on the dash will let you know when an issue has been detected in the EPC system.

What the EPC light means

Since the EPC is used on multiple other systems on the vehicle, it is likely that other warning lights will be illuminated on the dash as well. Typically, the stability control and cruise control will be disabled and their respective lights will be illuminated as well. The check engine light may also come on to show that the engine itself isn't operating at normal efficiency. To try and protect the engine, the computer can limit the vehicle's throttle and the car may feel sluggish as a result.
You will need to get the car scanned for trouble codes that can be used to identify the problem. Once repairs have been done and the codes cleared, everything should return to normal.

Is it safe to drive with the EPC light on?

Like the check engine light, the severity of the problem can vary greatly. If this light comes on, you should have the car checked out as soon as possible to prevent any significant damage from occurring. If your vehicle is limiting your throttle to protect the engine, you should only use the vehicle to take it to get repaired.
Common issues with your car's EPC are malfunctioning sensors which just need to be replaced. However, the issue can be more serious so don't hesitate and have your vehicle checked out as soon as possible.

"Engineering, Procurement, and Construction" (EPC) is a particular form of contracting arrangement used in some industries where the EPC Contractor is made responsible for all the activities from design, procurement, construction, to commissioning and handover of the project to the End-User or Owner.

In case of cars:
The EPC indicator is a standard in Volkswagen and Audi models. These vehicles have drive-by-wire systems that are computer-controlled. When a fault exists with the throttle pedal, throttle body, traction control and cruise control, the EPC warning light illuminates. In many instances, the vehicle's throttle may be limited when this light is illuminated in order to protect the engine. Often, there is just enough power enough to get the vehicle to a service facility for repairs.
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Hi Emir I have the same problem did you get yours resolved?

When these lights are on it is indicating a fault has occurred in the powertrain, the 1st thing you need to do is have the powertrain control module read for the fault codes that were stored when the computer turned on the warning lights.

jaguar x-type 2ltr diesel 2004 the glow plug warning light flashing, was told dirty fuel on fault code all fuel changed and filters. No problems for 20 miles untill engine was put under power on high revs went into limp mode, warning light glow plug falshing again? any ideas thanks.

You will need a scan tool, or just drive the car and if it was due to battery once the computer finishes running its diagnose checks it will turn light off, this may take a week and some driving around. you could also have the computer scanned to see what code is stored and see if its due to the battery.

i lose power with EPC and brake linning warning lights, after break pad service

That sounds like you bought big problems. Oil ights indicate low oil pressure= BIG BUCKS. I would have a qualified repair shop check it out, A shop that specializes in BMW. If you are lucky, maybe the oil sender is just bad. They can also check out the Ck eng light. But the oil light is priority one.

take it to an audi mechanic and reprogram the computer. it cost around $35 dollars.