BAD Air con noise!

lfletcher · 11-06-2011, 08:47 PM

New to this site but hoping someone can help me. Just brought a 190e 1985 and have 2 issues - air con works fine but has a shocking screetch that come and goes (sounds like a dentist drill!) also the power steering when turning to the right is really heavy. Any advice would be great...

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DRACO · 11-06-2011, 11:16 PM

Check the power steering fluid level.

Also the refrigerant may be low, system will still work if levels are low but the compressor will work on overdrive to keep up the system.

lfletcher · 11-07-2011, 05:35 PM

Thanks for that, power steering fluid was fine, weird thing is that the steering is fine when the engine is cold, when warmed up (and just turning right) the steering is harder to turn. Strange.

Ausmbtech · 11-07-2011, 06:26 PM

Check your drivebelt tension, it maybe loose which will explain both the screech and the weak powersteering.

lfletcher · 11-09-2011, 06:24 PM

Thanks, we checked the belt and it is super tight. The air con noise is coming from just inside the vents so maybe a bearing (the noise starts and stops)? May have to get a mercanic to check the power steering. Just so weird how it is just when turning right, (reversing and turning left no probs)

Gullwing · 11-15-2011, 04:14 AM

Sounds like the bearings in the blower motor. You can take it apart and add a little transmission fluid to the bearings to make the noise go away for a while.

lfletcher · 11-17-2011, 07:42 PM

Thanks ...... Will that require taking the whole dash apart?? or can you get to the bearings a simpler way like taking the aircon vents out?

lsboogy · 11-27-2011, 12:51 AM

Blower motors on most benz are accessed from the engine compartment, not a hard thing to do. Check Peach Parts and 190rev.net for a lot of instructions on these things. I did my daughter's in two hours, not working too hard either.

http://190rev.net/forums/showthread.php?t=34141

11-06-2011, 11:16 PM	#2
DRACO Member Garage is empty, add now Join Date: Jun 2005 Location: Los Angeles Posts: 84 Drives: 85 911 Targa	Check the power steering fluid level. Also the refrigerant may be low, system will still work if levels are low but the compressor will work on overdrive to keep up the system. __________________ [ Lexus ESleft]85 911 Targa My Baby 93 190E 96 Lexus ES300 S430 RIP[/left]

11-27-2011, 12:51 AM	#8
lsboogy Member Garage is empty, add now Join Date: Mar 2011 Location: Minneapolis Posts: 78 Drives: 2002 CLK55, 1993 190E, 1975 230C, 2007 E350	engine compartment Blower motors on most benz are accessed from the engine compartment, not a hard thing to do. Check Peach Parts and 190rev.net for a lot of instructions on these things. I did my daughter's in two hours, not working too hard either. http://190rev.net/forums/showthread.php?t=34141 __________________ AMG Orphan #57

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11-07-2011, 05:35 PM	#3
lfletcher Newbie Garage is empty, add now Join Date: Nov 2011 Posts: 4 Drives: 1985 190E	Thanks for that, power steering fluid was fine, weird thing is that the steering is fine when the engine is cold, when warmed up (and just turning right) the steering is harder to turn. Strange.

11-07-2011, 06:26 PM	#4
Ausmbtech Super Member Garage is empty, add now Join Date: Jan 2007 Location: Sydney, Australia Posts: 865 Drives: 190D, 190E 2.6, C240, C43, C220cdi	Check your drivebelt tension, it maybe loose which will explain both the screech and the weak powersteering.

11-09-2011, 06:24 PM	#5
lfletcher Newbie Garage is empty, add now Join Date: Nov 2011 Posts: 4 Drives: 1985 190E	Thanks, we checked the belt and it is super tight. The air con noise is coming from just inside the vents so maybe a bearing (the noise starts and stops)? May have to get a mercanic to check the power steering. Just so weird how it is just when turning right, (reversing and turning left no probs)

11-17-2011, 07:42 PM	#7
lfletcher Newbie Garage is empty, add now Join Date: Nov 2011 Posts: 4 Drives: 1985 190E	Thanks ...... Will that require taking the whole dash apart?? or can you get to the bearings a simpler way like taking the aircon vents out?

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