The most common causes for slow acceleration in Fiat 500X are clogged air filter, dirty mass air flow sensor (MAF), clogged fuel filter, fuel pump malfunction, faulty oxygen sensor, dirty throttle body, worn spark plugs and clogged catalytic converter. Less common causes are faulty throttle position sensor (TPS), bad ignition coils, dirty fuel
The first page for the 500 servicing schedule is 18,000mile Service Intervals labeled "500 and 500C Maintenance Programme." Every 18,000miles the charts says, "Replace spark plugs. (Petrol versions only)" In the chart, there are references to TA versions, Diesel versions and Dualogic versions, so it covers all the 500 models. NGK IX Iridium Spark Plug 6046. Part # 6046. SKU # 88393. Check if this fits your 2014 Fiat 500. Notes: Optional removable terminal nut spark plug. Available until stock is depleted. PRICE: 10.69. Ground Electrode Material: Nickel Alloy. Electrical Terminal Type: Removable Nut. Washington, DC. Seattle, WA. Tacoma, WA. The average price of a 2017 FIAT 500 spark plug replacement can vary depending on location. Get a free detailed estimate for a spark plug replacement in Workshop time: 1 hour 45 mins. If you would like to book your 500 1.4 into the workshop for a cam belt replacement the price of this service is £239.25 (price of water pump NOT included). Undo the x6 10mm bolts to the undertray. Using a plastic trim removal tool prise of the centre wheel cap to the front right side wheel. 279 posts · Joined 2015. #3 · Jun 25, 2023 (Edited) @D3loreangirl. Factory Spark Plugs for the non-turbo 1.4 USA spec motor are: Mopar SP070500AA. They should be checked for the proper gap at time of installation = 0.040 in. Torque them into the head at 14 ft. lbs. They have a genuine gold plated tip that connects to the ignition coil, and