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#1
04-07-2013, 02:17 PM
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Cooling issues
Finally I put my '84 190D on the road and noticed that my temperature gauge was climbing, especially on long inclines. After reaching about 100C I stopped the car with the engine running and opened the coolant reservoir. It was full to the top. Upper and lower radiator hose was hot. I squeezed the lower hose and a big air bubble escaped. The coolant level went to normal and the temperature fell to normal. I could drive the car with no issues for a whole day until I drove on the freeway and the same thing happen again. There is no oil in coolant and no water in engine oil. Any suggestions?
__________________
Current Fleet: '84 MB 190D 2.2L 5-Speed MT (Project) '85 Astro Van powered by Nissan LD28 Inline 6 Diesel Past rides: '65 MB 190Dc fathers car maintained & driven by me '66 MB L319 '59 MB 219 '58 MB 180D 
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#2
04-07-2013, 02:46 PM
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Time for a combustion gas leak test. NAPA sells a "block tester" to do it.
__________________
 Present 1987 300SDL 1991 300SL 1990 560SEL 2001 ML320 Past 1969 200D 1979-82 1983 300SD 1984-85 1972 250C 1982-02 1995 S350 2011 1997 S320 2012
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#3
04-09-2013, 06:17 PM
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At idle everything seems to be normal. How can I do the test while driving?
__________________
Current Fleet: '84 MB 190D 2.2L 5-Speed MT (Project) '85 Astro Van powered by Nissan LD28 Inline 6 Diesel Past rides: '65 MB 190Dc fathers car maintained & driven by me '66 MB L319 '59 MB 219 '58 MB 180D
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#4
04-09-2013, 06:41 PM
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Does that model have the same issue with airlocks that the 123 models have?
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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#5
04-09-2013, 11:26 PM
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Possibly. I removed the aux. fan switch from the thermostat housing and filled reservoir with fluid until overflowed. I will test drive in a few days. BTW the 201 doesn't have a radiator cup only a reservoir cup.
__________________
Current Fleet: '84 MB 190D 2.2L 5-Speed MT (Project) '85 Astro Van powered by Nissan LD28 Inline 6 Diesel Past rides: '65 MB 190Dc fathers car maintained & driven by me '66 MB L319 '59 MB 219 '58 MB 180D
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Linear Mode
