www.tdiclub.com

Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2016 Gone, but not forgotten VAG-Com List Unit Conversions TDIClub Chat Thank You




Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKIII-A3/B4 TDIs

VW MKIII-A3/B4 TDIs This is a discussion about MKIII-A3/MkIII Jetta/Golf (<99.5) and B4 Passats (96,97) TDI's. Non TDI related postings will be moved or removed.

Reply
 
Thread Tools
Old January 4th, 2018, 04:53   #1
mohawk69
Veteran Member
 
Join Date: Apr 2005
Location: Richmond Hill, GA (Savannah)
Default Radiator hose diagram wanted

I need a picture of the radiator hose routing for a 96 Passat. The diagrams I've been able to find seem to be for a gas engine. I've searched here and other places online. Any place I've missed? I'm just trying to identify the hose so I can order it. TIA
mohawk69 is offline   Reply With Quote
Old January 4th, 2018, 06:21   #2
0die
Veteran Member
 
Join Date: Nov 2012
Location: corpus christi, tx
Default

I drove mine to work today...I can try to snap a pic...but not exactly sure what you are getting at...

I would think you just tell the parts guys what hose you need and he looks it up and gets it for you...or is this some "mystery" hose in the system?

AZ Autohaus usually has the actual hoses pictured when you are searching online. so if you don't know the correct name of the hose you can match the pictures...
__________________
1996 Passat wagon TDI
assorted gas powered crap and motorcycles
RIP...countless Mercedes, Isuzu and other random diesels
0die is offline   Reply With Quote
Old January 4th, 2018, 08:14   #3
mohawk69
Veteran Member
 
Join Date: Apr 2005
Location: Richmond Hill, GA (Savannah)
Default

I was sent a pic from ID parts but its different. On my 96, the top hos comes down from the drivers side and goes into a multi hose flange on the block or cylinder head which includes, I think, the temp sensor. From the bottom of that flange there's a hose about 9" long that goes to another flange on the block. I need a name or part number for that hose.
mohawk69 is offline   Reply With Quote
Old January 4th, 2018, 09:33   #4
0die
Veteran Member
 
Join Date: Nov 2012
Location: corpus christi, tx
Default

I'll have to go look. I recall a weird multi hose thing...

I bought one of every weird hose once and keep them in the car as spares...I road trip a lot and auto zone don't carry these odd parts in stock...
__________________
1996 Passat wagon TDI
assorted gas powered crap and motorcycles
RIP...countless Mercedes, Isuzu and other random diesels
0die is offline   Reply With Quote
Old January 4th, 2018, 09:53   #5
0die
Veteran Member
 
Join Date: Nov 2012
Location: corpus christi, tx
Default

there are 6 hoses on my 96 TDI...

2 are the upper and lower radiator hoses...pretty sure it's not that..kinda hard to confuse...these are also the only 2 hoses I don't have a spares :/

I have the other 4 hoses in my hand...will post part # in a bit
__________________
1996 Passat wagon TDI
assorted gas powered crap and motorcycles
RIP...countless Mercedes, Isuzu and other random diesels
0die is offline   Reply With Quote
Old January 4th, 2018, 09:58   #6
oilhammer
Certified Volkswagen Nut Vendor
 
oilhammer's Avatar
 
Join Date: Dec 2001
Location: St Louis
Fuel Economy: fantastic
Default

Quote:
Originally Posted by mohawk69 View Post
I was sent a pic from ID parts but its different. On my 96, the top hos comes down from the drivers side and goes into a multi hose flange on the block or cylinder head which includes, I think, the temp sensor. From the bottom of that flange there's a hose about 9" long that goes to another flange on the block. I need a name or part number for that hose.

You are talking about the bypass hose, shaped sort of like a hockey stick. Goes from the back of the water pump housing to the flange on the head... in other words, from the same places the radiator hoses go, it just bypasses the radiator so coolant is always flowing about. And since your 1Z engine has an oil cooler, that hose will have a tee in it to that.

I *think* the part number is 028-121-053-Q Do a google image search with that part number.
__________________
oilhammer
www.cardocautomotive.com

Last edited by oilhammer; January 4th, 2018 at 10:02.
oilhammer is offline   Reply With Quote
Old January 4th, 2018, 10:07   #7
0die
Veteran Member
 
Join Date: Nov 2012
Location: corpus christi, tx
Default

hose#3, 1H0-819-371 or 119-819-00127/Meyle brand-heater hose/2-way, side of head to firewall

hose#4, 1HO-819-373-C or 119-819-0014/Meyle brand, heater hose/2-way, fire wall to metal return tube

hose#5, 028-121-053Q or 119-121-0100/Meyle brand, 3-way, from front of head(radiator return) and oil cooler, back to water pump.

hose#6, 037-122-058 or 4530/MTC brand, 3-way, from water pump to oil cooler and metal pipe going to short heater hose at firewall

those are the 4 brand new hoses, still in bag, that I'm holding in my hand...the "0" could be an "O"...letter, not number?
__________________
1996 Passat wagon TDI
assorted gas powered crap and motorcycles
RIP...countless Mercedes, Isuzu and other random diesels

Last edited by 0die; January 4th, 2018 at 10:09.
0die is offline   Reply With Quote
Old January 4th, 2018, 11:24   #8
Steve Addy
Veteran Member
 
Join Date: Aug 2002
Location: Iowa
TDI(s): 97 Mk3
Default

Quote:
Originally Posted by 0die View Post
hose#3, 1H0-819-371 or 119-819-00127/Meyle brand-heater hose/2-way, side of head to firewall

hose#4, 1HO-819-373-C or 119-819-0014/Meyle brand, heater hose/2-way, fire wall to metal return tube

hose#5, 028-121-053Q or 119-121-0100/Meyle brand, 3-way, from front of head(radiator return) and oil cooler, back to water pump.

hose#6, 037-122-058 or 4530/MTC brand, 3-way, from water pump to oil cooler and metal pipe going to short heater hose at firewall

those are the 4 brand new hoses, still in bag, that I'm holding in my hand...the "0" could be an "O"...letter, not number?
No, it's 1H0 (as in numeral zero) not O although some manufacturer might have screwed something up.

The schematic for hoses by VW is screwy and hard to weed through since models and equipment are different. Compound that with the EGR cooler and the pipe, which separates hoses, and it makes for some confusion though.

As a side note though I wouldn't just replace hoses to be replacing them. I think newer hoses are fine but be aware that quality on some has been somewhat lacking. I remember last year someone with one of the triple hoses beneath the IP had one with a connection that blew apart...this was a new hose.

I have more faith in a OE hose that might be a decade old than I do with some of the crap being put out now. I had a Meyle upper rad hose for the wagon not seal at the flange due to imperfections in the manufacture where it attached to the inlet flange. I got a replacement but even that one had some of the same irregularities.

Good luck

EDIT: here's some information I gathered with a casual look at the parts catalog:

coolant hoses from WP to cooler / flange (not radiator hoses)

upper 3-way hose part #'s 028121053B, ...053P, ...053Q
lower 3-way hose part #'s 037121058, ...058B

As a side note remember that the lower radiator hose is NLA, the upper is still available under 3A0121101F for now. I don't expect to see these around forever though. I was not impressed with the Meyle version of this either..


Steve
__________________
97 Jetta TDI, 90 B3V TDI, 92 MB 300SD

You didn't poison the coffee, did you? Not anymore than I usually do.

Last edited by Steve Addy; January 4th, 2018 at 11:34.
Steve Addy is offline   Reply With Quote
Old January 4th, 2018, 12:10   #9
0die
Veteran Member
 
Join Date: Nov 2012
Location: corpus christi, tx
Default

got a part number for the lower hose? might find one from an obscure source
__________________
1996 Passat wagon TDI
assorted gas powered crap and motorcycles
RIP...countless Mercedes, Isuzu and other random diesels
0die is offline   Reply With Quote
Old January 4th, 2018, 15:41   #10
mohawk69
Veteran Member
 
Join Date: Apr 2005
Location: Richmond Hill, GA (Savannah)
Default

028-121-053-Q

That appears to be it. I was initially looking at it early in the morning darkness and rain/snow. I thought it was going to a lower
flange but I see that's not correct. Thanks all for the assist.
mohawk69 is offline   Reply With Quote
Old January 4th, 2018, 22:04   #11
Steve Addy
Veteran Member
 
Join Date: Aug 2002
Location: Iowa
TDI(s): 97 Mk3
Default

Quote:
Originally Posted by 0die View Post
got a part number for the lower hose? might find one from an obscure source
3A0121051G was the last part number bandied about as being available. I see that it still can be had from ECS Tuning. There are also other part numbers that would fit the bill too, ...051C is one of them and ...051L too but both these are NLA now. I'm actually surprised that ECS still shows that hose available since I don't think that VW does.

Quote:
Originally Posted by mohawk69 View Post
028-121-053-Q

That appears to be it. I was initially looking at it early in the morning darkness and rain/snow. I thought it was going to a lower
flange but I see that's not correct. Thanks all for the assist.
Yeah, that's the second of the two triple hoses from the WP to the pipe / oil cooler and on to the coolant flange on the head. This is the hose most vulnerable to IP leaks and this is also the one that blew apart last year on someone. There are some aftermarket options for this hose that use clamped fittings versus a bonded junction.

One of the threads that discusses radiator hoses is here and it also has links to another thread where there was an extensive discussion.

Steve
__________________
97 Jetta TDI, 90 B3V TDI, 92 MB 300SD

You didn't poison the coffee, did you? Not anymore than I usually do.
Steve Addy is offline   Reply With Quote
Old January 5th, 2018, 15:04   #12
ToddA1
Veteran Member
 
Join Date: Aug 2011
Location: NJ 08002
Fuel Economy: Dismal
Default

I have a feeling ECS’s site hasn’t been updated, and that lower hose is NLA. Worth a shot, but I’d probably call them, before ordering.

-Todd
__________________
'96 B4V: Kerma tune and PP520s
'97 B4: Stock
Rabbit build
ToddA1 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
coolant hose diagram for 06 tai WesH TDI 101 1 March 9th, 2016 03:38
Vaccum hose Diagram ASZ tdi vwfamilyvan VW MKIV-A4 TDIs (VE and PD) 5 May 11th, 2011 04:05
Vacuum hose diagram trdillon1 TDI 101 8 August 31st, 2010 13:09
Lower radiator hose, clip to radiator fan assembly VT_hawkeye VW MKIV-A4 TDIs (VE and PD) 1 June 20th, 2010 13:07
Actuator hose diagram? r44ms k TDI 101 0 May 24th, 2008 15:00


All times are GMT -7. The time now is 20:24.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2017
Contact Us | Privacy Statement | Forum Rules | Disclaimer
TDIClub Online Ltd (TDIClub.com) is not affiliated with the VWoA or VWAG and is supported by contributions from viewers like you.
1996 - 2017, All Rights Reserved
Page generated in 0.14859 seconds with 11 queries
[Output: 111.33 Kb. compressed to 93.73 Kb. by saving 17.60 Kb. (15.81%)]