Parts costs: £54 - £77. Labour time: 1-2 hours. £118 - £136. £178 - £203. Get exact price. Prices could not be created for 19 models. Show ∨. Estimates on repair costs, such as the above results for a pre-heat/glow plugs (all) replacement, are created by combining data from multiple third-party sources. Engine bay fuse box. 2 rows of relays on the right hand side as you look from the front of the car. It is the one nearest you on the left hand row (row of 5 relays - 2 small and 3 large type). Also the fuse, 60 amp, is the extreme right hand side one of the first row of 6 (nearest the windscreen). May be a layout guide on the inside of the Posted April 5, 2019. Glow plugs are part of the emissions system on modern diesels and used during DPF regen which is why they cause limp mode. As you say it only occurs under load and not frequently, it doesn't sound like glow plugs to me, sounds more like an air flow issue, EGR or MAF for example. MOTORCRAFT IGNITION SPARK PLUG £6.81 Ignition. £42.70 Ignition. TRANSIT GLOW PLUG WIRE £56.61 View all Service Kits . Service Kits. MONDEO TDCI FOCUS RS 1300 posts · Joined 2013. #2 · Sep 5, 2015. Many dealers offer services and/or intervals that vary from factory recommendations. 100,000 miles is a long time, and there are cases of the plugs seizing in aluminum heads, but with todays unleaded fuels, quality parts, and tightly sealed rings, etx. I think 20,000 miles is the same as a 3,000 Changed out the plugs at 98K miles and 5.5yrs old. Very simple, 20-minute job. Hardest part was cleaning the engine block of all crud/dust/sand. Canned air if you don't have a compressor worked fine for us. Used Factory Ford OEM plugs and a $1 pack of anti-seize. 3/8" ratchet, 6" extension, and a standard cushioned spark plug socket. Parts costs: £59 - £79. Labour time: 0-1 hours. £85 - £97. £117 - £133. Get exact price. Prices could not be created for 14 models. Show ∨. Estimates on repair costs, such as the above results for a pre-heat/glow plugs (all) replacement, are created by combining data from multiple third-party sources. Buy FORD FOCUS build year 2008 Glow plugs as well as other car parts for FOCUS 2008 at discount prices directly from the warehouse (DA_, HCP, DP) 1.8 TDCi 115 hp difficult but possible on Jack standsGlow plug replacement Transit 2198cc 2.2L (2012 Mk7 Mk8 RWD 4.4v M10)Assess whether the glow plugs are faulty: DTCsParts I've had a number of issues of the last couple of years with the DPF. Majority of these have been fixed now, but have one last code appearing when running Forscan, P269F. That points to the exhaust after treatment glow plug. I Googled it and found a couple of videos on how to do it on a Focus and a Mondeo. hpVb.