Hi all, Ive noticed with the recent colder weather my 97 S280 is taking longer to get warm in the morning. I get warm air through the heater almost immediately but yesterday for example (which was very cold) it took a good 10-15 mins to reach 80c. First thoughts are of course thermostat (unless anyone else has got other suggestions). ECP lists two types: 209220020 or 209745021 Can anyone advise the difference? Also, I dont have a workshop manual for the car and dont have much Merc spannering experience - is it a major task on the 280 engine/? Ta muchly!