One problem related to fuel hoses lines/piping and fittings has been reported for the 2003 Jaguar S-type. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Jaguar S-type based on all problems reported for the 2003 S-type.
Vehicle was returned on (three different occasions) to dealer in two different states to correct grinding sound near front wheels between November 2003 and June 2005. Vehicle sprung a broken fuel line some time in late 2004. Vehicle rear brakes locked on freeway ramp July, 2005 two weeks after dealer had installed new rear brake pads. The vehicle has too many defects in various areas for a three year old. My fear is that there is more to surface and I will be holding a lemon in the very near future.