Engine management light constantly on. Codes read as followed :
P0300 random multiple cylinder misfires
P0303 cylinder 3 misfire detected
P0304 cylinder 4 misfire detected
P0302 cylinder 2 misfire detected
P0301 cylinder 1 misfire detected.
Car is showing no obvious signs of misfiring. Idling fine, no loss of power ect.
Engine management light can intermittently start to flash on and off ( approx for about 5 seconds), and then go back to solid, when car is DEcellerating from around 90mph and around 4000 rpm.
On audi forums stating poss spark plugs/coil packs, but just need a bit of advice or any other suggestions please. Thanks