2018 C220d Cabriolet keeps sticking in 1st gear when stuck in traffic

[Stirlin]

<div class="bbWrapper"><blockquote data-attributes="member: 129470" data-quote="BoristheBounce" data-source="post: 3288289" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3288289" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3288289">BoristheBounce said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> What mode are you driving in, Eco, Comfort, Sport or sport +? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Usually im in individual, with start atop disabled, other settings at comfort.<br /> <br /> I just noticed today after I took the car to the bank, my engine is really hot but my radiator is cold to touch after a 20 min drive.<br /> <br /> Im wondering about thermostat now, as it always happens when stopped with engine idling</div>

 

[BoristheBounce]

<div class="bbWrapper"><blockquote data-attributes="member: 175745" data-quote="Stirlin" data-source="post: 3288295" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3288295" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3288295">Stirlin said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Usually im in individual, with start atop disabled, other settings at comfort.<br /> <br /> I just noticed today after I took the car to the bank, my engine is really hot but my radiator is cold to touch after a 20 min drive.<br /> <br /> Im wondering about thermostat now, as it always happens when stopped with engine idling </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Doesn't sound right re the radiator but try driving in comfort mode and see what happens.</div>

 

[Stirlin]

<div class="bbWrapper"><blockquote data-attributes="member: 129470" data-quote="BoristheBounce" data-source="post: 3288297" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3288297" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3288297">BoristheBounce said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Doesn't sound right re the radiator but try driving in comfort mode and see what happens. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Hiya<br /> <br /> Well, computer guy never showed up, last time i waited nearly 3 weeks on him, he has all the MB software and tools so worth the wait.<br /> <br /> So far since making this post, Ive replaced outside ambient temp sensor, and the inside ambient temp sensor, air filter, pollen filter, Start/Stop Module,/Battery , new thermostat, all genuine Mercedes parts.<br /> <br /> My start stop is working as soon as I start the car, and it works right away, but after a few hundred yards it switches itself off.<br /> <br /> It has been much better since changing these parts and its only sticking occasionally, I'm hoping it just needs codes cleared now.<br /> <br /> FYI - Parts Info<br /> <br /> Start Stop module/battery - Dingbro £97 / MB £168 includes vat - both modules made my Hella<br /> <br /> Outside Ambient Temp Sensor - MB Part £30.40+vat<br /> <br /> Inside Ambient Temp Sensor - MB Part <br /> £18.10+vat<br /> <br /> Thermostat module - Dingbor £110+vat / MB £75 includes vat.<br /> <br /> Gearbox Service Parts - Genuine MB <br /> <br /> Oil sump (filters built into sump) £130+vat<br /> <br /> Transmission oil 5 litres - genuine MB - £55.71+vat / 1 litre - £17.69+vat (6 litres required)<br /> <br /> New Stretch bolts - Genuine MB - x10 £15.50+vqt<br /> <br /> Overflow pipe - Genuine MB - £10.10+vat<br /> <br /> Guide Tube - Genuine MB - £1.35<br /> <br /> 2018 C Class AMG Premium Plus Night Edition Cabriolet parts bought from Mercedes Benz of Glasgow (smart)</div>

 

[Stirlin]

<div class="bbWrapper"><blockquote data-attributes="member: 175745" data-quote="Stirlin" data-source="post: 3290331" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3290331" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3290331">Stirlin said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Hiya<br /> <br /> Well, computer guy never showed up, last time i waited nearly 3 weeks on him, he has all the MB software and tools so worth the wait.<br /> <br /> So far since making this post, Ive replaced outside ambient temp sensor, and the inside ambient temp sensor, air filter, pollen filter, Start/Stop Module,/Battery , new thermostat, all genuine Mercedes parts.<br /> <br /> My start stop is working as soon as I start the car, and it works right away, but after a few hundred yards it switches itself off.<br /> <br /> It has been much better since changing these parts and its only sticking occasionally, I'm hoping it just needs codes cleared now.<br /> <br /> FYI - Parts Info<br /> <br /> Start Stop module/battery - Dingbro £97 / MB £168 includes vat - both modules made my Hella<br /> <br /> Outside Ambient Temp Sensor - MB Part £30.40+vat<br /> <br /> Inside Ambient Temp Sensor - MB Part<br /> £18.10+vat<br /> <br /> Thermostat module - Dingbor £110+vat / MB £75 includes vat.<br /> <br /> Gearbox Service Parts - Genuine MB<br /> <br /> Oil sump (filters built into sump) £130+vat<br /> <br /> Transmission oil 5 litres - genuine MB - £55.71+vat / 1 litre - £17.69+vat (6 litres required)<br /> <br /> New Stretch bolts - Genuine MB - x10 £15.50+vqt<br /> <br /> Overflow pipe - Genuine MB - £10.10+vat<br /> <br /> Guide Tube - Genuine MB - £1.35<br /> <br /> 2018 C Class AMG Premium Plus Night Edition Cabriolet parts bought from Mercedes Benz of Glasgow (smart) </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote></div>

 

[Stirlin]

<div class="bbWrapper">Problem solved !!! <br /> <br /> Computer guy came on Friday, plugged computer into the car, DPF regeneration was at 158% ....and because I drive like an old man and onlyndonshoet journeys the DPF never got the chance to regenerate.<br /> <br /> He took the car out with computer plugged in, he said regeneration carried out normally with no problems.<br /> <br /> DPF can put the car in limp mode.<br /> <br /> Also my AC is blowing cold sjlinve changing temp sensors.<br /> <br /> And start stop module i changed only has a life span of 4 to 5 years, my car has just turned 5 years old so worth doing to save any further problems. <br /> <br /> Of anyone needs help or info on parts, give me a shout anytime. <br /> <br /> Thanks to everyone who helped me, very much appreciated! <img class="smilie smilie--emoji" alt="😊" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f60a.png" title="Smiling face with smiling eyes :blush:" data-shortname=":blush:" loading="lazy" width="64" height="64" /></div>

 

[easyonthegas]

<div class="bbWrapper">Would a gearbox ECU reset be worth doing?<br /> MB guidance &quot;Switch ignition on, press accelerator to floor for 10 seconds, keep accelerator pressed down then switch off ignition, release accelerator, then wait 2 minutes to restart engine&quot;<br /> <br /> Also is it worth deleting any personal profiles you have installed.<br /> <br /> Suspect it is a control issue rather than mechanical fault.</div>