Hi All, newbe here, hope ive posted this in right section. Recently got a w202 c250 td estate, goes very well, and happy until the other day. The alarm went off in the night, even though had a new battery, unlocked it, then locked it, all ok rest of the night. Go to start the following morning the glow plug didnt come on until after 3rd attempt at tuning the key, light goes out and started on the button. went out in it, low and be hold same problem, but didn't light didnt come on unitl what semmed the 30th attempt and then the TC warning triangle came on but still started no problem. Drove home, parked it up, glow plug light wont come on at all, and therefore cant even crank the engine, but air con fans do come on. Have replaced the glow plug relay, as that looked at fault, but still no joy. Am thinking either glow plugs, but apparently if theyre at fault the light comes on and stays on after starting, or ignition switch/barrell. Any help greatly received. Thanks in advance.