2003 R50 Eng warning light.

Asked by Nov 14, 2014 at 01:03 AM about the 2003 MINI Cooper

Question type: Maintenance & Repair

When driving hard, around 4000 rpm, check eng light comes on & derates eng (low
power). Turn ignition off & re-start clears fault & away we go till i start driving hard?

9 Answers


Its obvious that you're EGR is opening when it shouldn't be making the mix so lean its not able to run. You must get the code first when its there and its probably a bad valve opening during acceleration not during coasting as it should.

Best Answer Mark helpful

Yeah drive it until check light goes on and have someone test it. Like he said egr faulty valve maybe a o2 sensor or plugs

Best Answer Mark helpful

Before you know exactly which codes you have NOTHING IS CERTAIN EVER. Never plugs and somethings.you wouldn't believe how unrelated to codes are. Also EGRs usually just get dirty and don't go bad.

Best Answer Mark helpful

Mine did the exact same thing until it stayed on got the code for egr and o2 sensor.

1 of 1 people found this helpful.

One thing here is that the EGR is NOT BAD since it opens. Bad would be NOT opening maybe. Find whatever in the system is causing the EGR to signal it to Open. That's where your problem is. Most EGRs replaced are just fine and maybe stuck with carbon which needs to be cleaned only.


Hey I just pulled the EGR plug electrical plug and taped it off until I figured out what to do then you can drive without stalling out.

1 of 1 people found this helpful.

It's better to have a bad egr than none. Just keep it in it's not expensive and when I changed mine it took not even 5 minutes


It could be your altenator connector Idk the name for that wire it connects altenator to neg of battery


I guarantee you the EGR is just fine or it wouldn't open at all. ECU is getting a bad signal from another component telling it to open when it never should. Relacing it will do Nothing but cost you and your back to beginning.

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