Air Conditioner Effectiveness
Junior Member
Joined: Jan 2012
Posts: 36
Likes: 0
From: San Diego
2012 C350
Don't know about Texas, but when I took my car to Vegas, it didn't feel as cool as it should have in the cabin set to 65F
Edit: It was like 114F in Vegas that day lol definitely not as cold as my BMW
Edit: It was like 114F in Vegas that day lol definitely not as cold as my BMW
Last edited by UCSD_C350; Sep 16, 2012 at 08:28 PM.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 5,113
Likes: 57
From: Southwest USA
Another round of ICE
Here in Michigan, we've had 90-100 degree days this year and I've been consistently impressed at how well the AC works. 
I don't know if C250 has any AC changes from C300.
I don't know if C250 has any AC changes from C300.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 5,113
Likes: 57
From: Southwest USA
Another round of ICE
Thread Starter
Junior Member
Joined: Mar 2010
Posts: 37
Likes: 0
2008 VW Rabbit
Of course! I see a lot of black MB and BMW for sale around here. I wonder if that just reflects their popularity, or whether it's because the owners have learned a black car doesn't make sense in South Texas...
MBWorld Fanatic!
Joined: Jun 2011
Posts: 2,535
Likes: 309
From: Canada
A car
The temperature within the engine bay has a direct correlation with how effective your AC works.
After driving a E550 that is turbo'd and direct injection, the AC on that was..meh. The 2008-2012 C300 is awesome, but at the same time, C300's run quite a bit cooler without DI and Turbos. Not scientific, just my theory...
The C250 suffers from the same issue with DI and Turbo. Drove the new C300 with DI, and same issue. If the temperature is warmer in the engine bay, it won't cool as well. Flip open the hood wide open then blast the AC, you'll notice it comes out quite a bit cooler (also why extended idle Crown Vic police vehicles sometime pop their hood in the summer)
After driving a E550 that is turbo'd and direct injection, the AC on that was..meh. The 2008-2012 C300 is awesome, but at the same time, C300's run quite a bit cooler without DI and Turbos. Not scientific, just my theory...
The C250 suffers from the same issue with DI and Turbo. Drove the new C300 with DI, and same issue. If the temperature is warmer in the engine bay, it won't cool as well. Flip open the hood wide open then blast the AC, you'll notice it comes out quite a bit cooler (also why extended idle Crown Vic police vehicles sometime pop their hood in the summer)
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MBWorld Fanatic!
Joined: Feb 2004
Posts: 3,986
Likes: 6
From: SEATTLE WASHINGTON USA
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
The temperature within the engine bay has a direct correlation with how effective your AC works.
After driving a E550 that is turbo'd and direct injection, the AC on that was..meh. The 2008-2012 C300 is awesome, but at the same time, C300's run quite a bit cooler without DI and Turbos. Not scientific, just my theory...
The C250 suffers from the same issue with DI and Turbo. Drove the new C300 with DI, and same issue. If the temperature is warmer in the engine bay, it won't cool as well. Flip open the hood wide open then blast the AC, you'll notice it comes out quite a bit cooler (also why extended idle Crown Vic police vehicles sometime pop their hood in the summer)
After driving a E550 that is turbo'd and direct injection, the AC on that was..meh. The 2008-2012 C300 is awesome, but at the same time, C300's run quite a bit cooler without DI and Turbos. Not scientific, just my theory...
The C250 suffers from the same issue with DI and Turbo. Drove the new C300 with DI, and same issue. If the temperature is warmer in the engine bay, it won't cool as well. Flip open the hood wide open then blast the AC, you'll notice it comes out quite a bit cooler (also why extended idle Crown Vic police vehicles sometime pop their hood in the summer)
If you want colder outlet temps (and I often do) I suggest pushing the MAX AC button for awhile.
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