Sharon, NO NO NO!!!
Sorry Paul but the potential damage can be terminal!
A coil pack generates the spark to ignite the fuel, the spark leads carry the spark into the engine.
Driving a car with a broken coil pack can damage various parts of the engine.
OK so maybe the garage IS lying, do you really want to take the chance.
A simple test can be done with a type of strobe light to diagnose whether it's a misfire or the coil pack.
Ask the garage to "strobe test the spark", if in doubt, get a second opinion, it's not worth the potential damage to the engine. A new coil pack fitted should be around £60 to £90.
Kind Regards,
Simon.
Friendly Simon., March 2008