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Intructions for Replacing Aux Water Pump on 602
I'm having trouble finding instructions in the FSM for replacing my auxiliary water pump on my 1992 300D....can anyone help?
Thanks. http://www.w124performance.com/service/Index/602_603index.html
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#2
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The aux water pump is held by one or two small hex-head bolts (via a rubber-wrapped bracket), has one 2-pin electrical connector (no latch), and two "heater hoses".
Pinch off the heater hoses, disconnect, remove, replace.
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Gone to the dark side - Jeff |
#3
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Where is it on my vehicle?
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
#4
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I think it's near the air filter.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#5
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It's possibly behind the battery near the monovalve, on the 603 it's under the washer bottle. I don't have a 2.5, someone here who does should be able to tell you.
I just tested and plugged mine back in (un-hooked in the summer), sure gets cold at idle without it.
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Gone to the dark side - Jeff |
#6
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Its on the front right hand side of the motor, just near where the bottom radiator hose attaches to the motor. you can find it by following the heater hose back from the fire wall to the motor.
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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
#7
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Its under the windshield washer tank.
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#8
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It's under the windshield washer tank. I changed mine out last week. Disconnect the top 2 hoses on windshield washer bottle and remove it. It slides right out. When you look straight down you'll be looking at your auxiliary water pump. There are 3 hoses attached to it. Remove the hoses, disconnect the pump from it's bracket which is also wrapped in rubber; replace.
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1995 E420 152k 1991 300D 2.5 348116 daily driver 1992 300E 2.6 196k-work in progress(head gasket) 2002 BMW 745Li 93k |
#9
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Hidden in the HVAC section
[Although, the Location shown in the FSM for the "Up to" 11/92 are WRONG!]
http://www.w124performance.com/service/w124CD1/Program/Climate/83-630.pdf O4 and dablk1 are correct about the location on the Early 124.128. Did the factory move the Auxiliary Water Pump over to the Mono-Valve location in late 1992 as pictured in the FSM??? (Or are we all victims [Once Again] of the Hybridized 601/602/603 FSM ?]
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'84 300SD sold 124.128 |
#10
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Quote:
And just 2 hoses, not 3, correct?
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife Last edited by shertex; 10-27-2010 at 07:15 AM. |
#11
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Significant? Just clamp both hoses and you'll lose a cup.
If you don't have the $5 hose clamps, use vice-grips and a couple of short pieces of wood.
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Gone to the dark side - Jeff |
#12
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Coolant loss will not be significant. There are 3 hoses. If you have the replacement part in your hand there should be three holes(connections) 1 at one end and 2 on the other. Hoses attach to these. Also keep in mind that there is a small modification on some of the pumps. It's the placement of the power connector... Some are attached with a wire extending from the pump and the other is attached directly to the pump.
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1995 E420 152k 1991 300D 2.5 348116 daily driver 1992 300E 2.6 196k-work in progress(head gasket) 2002 BMW 745Li 93k |
#13
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Actually I stand corrected. I apologize. There are only 2 hoses, the third connection is for the power source. There are 3 connections, 2 hoses and 1 electrical.
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1995 E420 152k 1991 300D 2.5 348116 daily driver 1992 300E 2.6 196k-work in progress(head gasket) 2002 BMW 745Li 93k |
#14
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PM sent
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1995 E420 152k 1991 300D 2.5 348116 daily driver 1992 300E 2.6 196k-work in progress(head gasket) 2002 BMW 745Li 93k |
#15
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I've identified the AWP beneath the washer reservoir. One thing that seems odd...on the one end, there's no electrical connection. Kind of tight town there, hard to see. Maybe connection is on the side??
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14 E250 Bluetec "Sinclair", Palladium Silver on Black, 153k miles 06 E320 CDI "Rutherford", Black on Tan, 171k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver, 142k mi, wastegate conversion 19 Honda CR-V EX 61k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
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