[MBZ] ACC Dash sensor foam tube on 83' 300D
So, I finally got behind the glovebox to look for this infamous foam tube for the dash sensor on my 83' 300D, that if suitably replaced will supposedly give me a system that does something other than I want it hot! or I want it cold!. Sure enough there was a hunk of gunky, sticky foam stuff between a couple lengths of seemingly regular rubber and/or plastic hose. It was suggested that a piece of belled hose such as that from the radiator reservoir makes a good replacement. I don't have a junk car to use and I haven't made it to the FLAPS to see if they have a nice cheap replacement so i was wondering what my other options might be. If the idea is simply to get some flow, but not full flow air through, how appropriately sized does the belled hose need to be? Could I just use one larger piece of hose over top of the smaller? I.e. the I.D. of one hose matches the O.D. of the other. Could I simpy get a regular piece of hose and put some holes in it? As for explanation of the system, is it basially just trying to get some low flow of air over the sensor by pulling from the blower motor? Is it also sampling outside air? I found a broken hose that seems to be heading out the side of the car right in front of the passenger door and the other end seems to come from near where the air temp sensor is. I think I've mostly got it sealed up now with some electrical tape. Thanks! Levi
Re: [MBZ] ACC Dash sensor foam tube on 83' 300D
Sure enough there was a hunk of gunky, sticky foam stuff between a couple lengths of seemingly regular rubber and/or plastic hose. It was suggested that a piece of belled hose such as that from the radiator The 'perfect' replacement is a length of 1/2 peel-and-stick foam pipe insulation from the hardware store. Cheap, too. On my 560 SL I bought (from the dealer no less) the official replacement. I've learned a bit since then, and everything else has fed from the same length of foam insulation I bought awhile ago. If the idea is simply to get some flow, but not full flow air through, The idea was to get air flow, without coupling blower noise through. Cars with an aspirator motor (126, etc.) dispense with the foam section. Could I just use one larger piece of hose over top of the smaller? I.e. the I.D. of one hose matches the O.D. of the other. That's exactly what the original was, as is the suggested replacement. As for explanation of the system, is it basially just trying to get some low flow of air over the sensor by pulling from the blower motor? Yes. Without that flow in-cabin temperature regulation is largely nonexistent. As you've found. Is it also sampling outside air? No. I found a broken hose that seems to be heading out the side of the car right in front of the passenger door and the other end seems to come from near where the air temp sensor is. I believe that's a water drain for the air intake plenum. -- Jim
Re: [MBZ] ACC Dash sensor foam tube on 83' 300D
Jim, that's the perfect answer I was looking for! Cheap, simple and precise! Now, let me make sure i have it right. I have some of that insulation at home that has a slit down the side where it would slip over the pipe and I don't believe it's self stick. If I'm remembering correctly, the stuff you're talking about is the same except that the slit has some self adhesive on it so that once it's slipped sideways over the pipe, the seam will stick back together and seal itself off? THANKS! Levi (: On 11/9/06, Jim Cathey [EMAIL PROTECTED] wrote: Sure enough there was a hunk of gunky, sticky foam stuff between a couple lengths of seemingly regular rubber and/or plastic hose. It was suggested that a piece of belled hose such as that from the radiator The 'perfect' replacement is a length of 1/2 peel-and-stick foam pipe insulation from the hardware store. Cheap, too. On my 560 SL I bought (from the dealer no less) the official replacement. I've learned a bit since then, and everything else has fed from the same length of foam insulation I bought awhile ago. If the idea is simply to get some flow, but not full flow air through, The idea was to get air flow, without coupling blower noise through. Cars with an aspirator motor (126, etc.) dispense with the foam section. Could I just use one larger piece of hose over top of the smaller? I.e. the I.D. of one hose matches the O.D. of the other. That's exactly what the original was, as is the suggested replacement. As for explanation of the system, is it basially just trying to get some low flow of air over the sensor by pulling from the blower motor? Yes. Without that flow in-cabin temperature regulation is largely nonexistent. As you've found. Is it also sampling outside air? No. I found a broken hose that seems to be heading out the side of the car right in front of the passenger door and the other end seems to come from near where the air temp sensor is. I believe that's a water drain for the air intake plenum. -- Jim ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] ACC Dash sensor foam tube on 83' 300D
insulation at home that has a slit down the side where it would slip over the pipe and I don't believe it's self stick. Mine, and all that I've seen, has a peel-off plastic strip down each side of the slit. You install the insulation in place and then peel out the strips, exposing the adhesive which you press together sealing the pipe. -- Jim
Re: [MBZ] ACC Dash sensor foam tube on 83' 300D
you can use a piece of heater hose, but it will transmit blower motor noise thru the dash. Go to a plumbing supply place, or maybe lowes, and get some of that foam tubing stuff. Levi Smith wrote: So, I finally got behind the glovebox to look for this infamous foam tube for the dash sensor on my 83' 300D, that if suitably replaced will supposedly give me a system that does something other than I want it hot! or I want it cold!. Sure enough there was a hunk of gunky, sticky foam stuff between a couple lengths of seemingly regular rubber and/or plastic hose. It was suggested that a piece of belled hose such as that from the radiator reservoir makes a good replacement. I don't have a junk car to use and I haven't made it to the FLAPS to see if they have a nice cheap replacement so i was wondering what my other options might be. If the idea is simply to get some flow, but not full flow air through, how appropriately sized does the belled hose need to be? Could I just use one larger piece of hose over top of the smaller? I.e. the I.D. of one hose matches the O.D. of the other. Could I simpy get a regular piece of hose and put some holes in it? As for explanation of the system, is it basially just trying to get some low flow of air over the sensor by pulling from the blower motor? Is it also sampling outside air? I found a broken hose that seems to be heading out the side of the car right in front of the passenger door and the other end seems to come from near where the air temp sensor is. I think I've mostly got it sealed up now with some electrical tape. Thanks! Levi ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net
Re: [MBZ] ACC Dash sensor foam tube on 83' 300D
I will try the foam stuff, but if that's the only thing I doubt I'd even worry about it. My 300D isn't exactly quiet with the exhaust missing between the downturn after the turbo and the connection at the tranny! Levi (: On 11/9/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote: you can use a piece of heater hose, but it will transmit blower motor noise thru the dash. Go to a plumbing supply place, or maybe lowes, and get some of that foam tubing stuff. Levi Smith wrote: So, I finally got behind the glovebox to look for this infamous foam tube for the dash sensor on my 83' 300D, that if suitably replaced will supposedly give me a system that does something other than I want it hot! or I want it cold!. Sure enough there was a hunk of gunky, sticky foam stuff between a couple lengths of seemingly regular rubber and/or plastic hose. It was suggested that a piece of belled hose such as that from the radiator reservoir makes a good replacement. I don't have a junk car to use and I haven't made it to the FLAPS to see if they have a nice cheap replacement so i was wondering what my other options might be. If the idea is simply to get some flow, but not full flow air through, how appropriately sized does the belled hose need to be? Could I just use one larger piece of hose over top of the smaller? I.e. the I.D. of one hose matches the O.D. of the other. Could I simpy get a regular piece of hose and put some holes in it? As for explanation of the system, is it basially just trying to get some low flow of air over the sensor by pulling from the blower motor? Is it also sampling outside air? I found a broken hose that seems to be heading out the side of the car right in front of the passenger door and the other end seems to come from near where the air temp sensor is. I think I've mostly got it sealed up now with some electrical tape. Thanks! Levi ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] ACC Dash sensor foam tube on 83' 300D
I usually just use heater hose myself, just take the hard plastic part do a parts store a get a piece that fits snug over it. The noise is really very little noticable. Levi Smith wrote: I will try the foam stuff, but if that's the only thing I doubt I'd even worry about it. My 300D isn't exactly quiet with the exhaust missing between the downturn after the turbo and the connection at the tranny! Levi (: On 11/9/06, Kaleb C. Striplin [EMAIL PROTECTED] wrote: you can use a piece of heater hose, but it will transmit blower motor noise thru the dash. Go to a plumbing supply place, or maybe lowes, and get some of that foam tubing stuff. Levi Smith wrote: So, I finally got behind the glovebox to look for this infamous foam tube for the dash sensor on my 83' 300D, that if suitably replaced will supposedly give me a system that does something other than I want it hot! or I want it cold!. Sure enough there was a hunk of gunky, sticky foam stuff between a couple lengths of seemingly regular rubber and/or plastic hose. It was suggested that a piece of belled hose such as that from the radiator reservoir makes a good replacement. I don't have a junk car to use and I haven't made it to the FLAPS to see if they have a nice cheap replacement so i was wondering what my other options might be. If the idea is simply to get some flow, but not full flow air through, how appropriately sized does the belled hose need to be? Could I just use one larger piece of hose over top of the smaller? I.e. the I.D. of one hose matches the O.D. of the other. Could I simpy get a regular piece of hose and put some holes in it? As for explanation of the system, is it basially just trying to get some low flow of air over the sensor by pulling from the blower motor? Is it also sampling outside air? I found a broken hose that seems to be heading out the side of the car right in front of the passenger door and the other end seems to come from near where the air temp sensor is. I think I've mostly got it sealed up now with some electrical tape. Thanks! Levi ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net
