Hi, I recently had a small problem with temporary loss of power on my 2001 1.9TDI zetec which apparently cured itself - it's fine again now, but whenever I turn the ignition on prior to startup I get a warning light up on the dashboard display informing me that a service is required in 2000 miles. It has done 44,000 and is not due until 50,000. Does anyone know what's causing this and how to fix it? thanks, DP.