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Hi, Have you changed the engine coolant temperature sensor (ECT)? You say that once warm it starts up fine. I was having the opposite problem... started fine when cold, then when hot it wouldn't fire up, just turned over and over. The ECT tells the Engine Management Unit whether the engine is hot or cold, then the EMU decides whether to go into cold start or hot start mode. If the ECT is knackered it will be giving the wrong information... it's like starting an old car without using the choke when cold... or using the choke when it's hot. The Engine Coolant Temperature (ECT) sensor is quite cheap, available from your local parts store, and is an easy swap (ten minutes). See if it works... it did for me. Open the hood, remove the plastic cover and the sensor is on the top of the right bank about half way down... see pic below.

Hi everyone, my name is Jon & I'm a newbie, so please be gentle....but I do bite if provoked I bought a 2007 Chrysler 300C CRD a couple months ago with 78,000 on the clock, from someone who had had it sitting on the driveway for a while with a flat battery. He jumped started it for me when I went to view it & I noticed that the ABS, ESP, traction lights were lit up on the dash. At the time I considered this a minor fault because I was buying it for probably £1000-£1500 less than what most were selling for on autotrader & other online selling media. After fitting a brand new brand Exide 900A battery the lights still didn't go out. I have since read alot about these cars not liking having a flat battery for a while or even being jump started. Anyway, the code I get from both my Delphi & Appcar diag FCA laptop diagnostic software is U140E. The Appcar diag FCA is a recent one that I bought & it seems to do quite alot. But the Delphi software is the only one that will actuate the ABS pump. Seeing that I can actuate the ABS pump via the Delphi software, then I'm assuming that the module & pump are working fine & that it really is down to the fact that the battery was dead for so long, or that a jump start may have messed with the ECU. I'm thinking that the ECU needs to be re-flashed by a main dealer using their Starscan. Trouble is, at the moment, there are no main dealers open due to Covid-19. Anyone know of an independent garage that may have Starscan for chrysler/jeep/mercedes in south Essex ? Anyway, sorry for such a long newbie introduction

Sorry, should have posted this in the problems page. Next time I will...promise Anyway, if anyone was wondering what the solution was to code U140E....it was indeed down to a long term flat battery. Took the car to 'D.Salmon' in Colchester today & they sorted it out within an hour. They re-flashed the PCM, took it for a test drive & all sorted. I've got to admit that I have always been a bit wary of main dealers, but 'D.Salmon' were the only place in Essex that I could find that were still servicing Chryslers & still had Starscan/Wi-Tech & the knowhow to use it. They have now changed my opinion of main dealers. They were absolutely fantastic & the guy doing the job really did know what he was doing, he was a real pro & so much more knowledgeable than every local garage/mechanic that looked at it & said.."it's the ABS pump mate ! " The price was £99 (inc VAT) & I suppose that also includes the one off £35 pass to Techauthority for access to the Chrysler database, so that's not a bad price. After four months of owning a Chrysler 300C with no ABS, ESP, Cruise control etc & not having the software to fix it (I thought I did when I bought it, but I was wrong), it's nice to finally find a main dealer (open after the lockdown has lifted) that still has the tech to service Chryslers.