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When to change water hoses? Spark Plugs? #4689949
03/09/18 08:27 PM
03/09/18 08:27 PM
Joined: Nov 2005
Posts: 58
Round Rock Texas
jrcowboys Offline OP
jrcowboys  Offline OP
Joined: Nov 2005
Posts: 58
Round Rock Texas
Guys:

Have a 10 year old BMW 650i that has original water hoses. All look good and "feel" OK. When do you recommend changing hoses even when they feel/look OK? Note: I'm kind of a nut on maintenance and try to stay on top of everything. Also, same question on spark plugs.

Note: I got reamed on this forum for using too expensive oil for the change interval, but I try to keep my cars a long time (have 1999 Lexus) and feel the extra cost is worth it for peace of mind. Please be kind to us worriers.

Thoughts?

JR

Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4689953
03/09/18 08:32 PM
03/09/18 08:32 PM
Joined: Dec 2011
Posts: 4,884
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 4,884
North Carolina
If they look ok and feel ok they're ok.

Your owner's manual should contain information regarding the spark plug interval.


"Zed's dead baby, Zed's dead."
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4689963
03/09/18 08:47 PM
03/09/18 08:47 PM
Joined: May 2017
Posts: 109
VA
MSTUEBER Offline
MSTUEBER  Offline
Joined: May 2017
Posts: 109
VA
I have a 1992 Miata with original water hoses on it. They still look good, so why replace them!


2017 Fiat 124 Spider Abarth .... factory fill
2015 Chrysler 200 0w20 Milesyn Wix XP
1992 Mazda Miata Napa 5w30 Napa Gold
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4689964
03/09/18 08:48 PM
03/09/18 08:48 PM
Joined: Jan 2017
Posts: 1,546
VW Fanboy Island
maxdustington Online content
maxdustington  Online Content
Joined: Jan 2017
Posts: 1,546
VW Fanboy Island
From what I understand hoses being a regular maintenance item ended when they began to be made from EPDM.


03 Jetta AWP/09A 205k kms
Edge 0W40 + Mann 719/30
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4689972
03/09/18 09:03 PM
03/09/18 09:03 PM
Joined: Oct 2014
Posts: 1,276
NoVA
Jimzz Offline
Jimzz  Offline
Joined: Oct 2014
Posts: 1,276
NoVA
Yep EPDM changed the regular change schedule for hoses. As long as the car was not over heated they should be good for 20 or so years and in the 150-200k range.

Most cars can do 100k or more on double platinum or iridium plugs. I also change the belts around 100k as well for most.


yup
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4689979
03/09/18 09:13 PM
03/09/18 09:13 PM
Joined: Feb 2014
Posts: 2,303
Kansan,1911 45ACP fan
Marco620 Offline
Marco620  Offline
Joined: Feb 2014
Posts: 2,303
Kansan,1911 45ACP fan
You do like me and wait for aftermarket ones that add BLING!!!!!!!!
http://www.fkxracing.com/HPS-RACING-RADIATOR-HOSE-KIT-RED-12-15-HONDA-CIVIC-R18-57-1200R.htm


15' Civic R18Z1 189k.0w20 Redline/Archoil9200,Eibach,Tanabe&Tein Suspension/Borla Exhaust/XG7317
Right to work state proud.
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4690041
03/09/18 10:27 PM
03/09/18 10:27 PM
Joined: Nov 2005
Posts: 369
Bristol, Tennessee
Jett Rink Offline
Jett Rink  Offline
Joined: Nov 2005
Posts: 369
Bristol, Tennessee
I finally had to replace the hoses on my wife's Mercedes 2000 CLK320 last year. They were 17 years old and at about 150,000 miles. You've likely got several years more life in those BMW hoses. I'd leave them alone.


1987 Mercedes 300E 87,000 miles 15w-40
2012 Honda Odyssey 120,000 miles 0w-20
2000 Mercedes CLK320 170,000 miles 0w-40
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4690051
03/09/18 10:41 PM
03/09/18 10:41 PM
Joined: Dec 2002
Posts: 42,137
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,137
New Jersey
My early 1980s Mercedes still have original hoses!

Re: When to change water hoses? Spark Plugs? [Re: rooflessVW] #4690053
03/09/18 10:43 PM
03/09/18 10:43 PM
Joined: Dec 2017
Posts: 2,503
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,503
SE British Columbia, Canada


I find Iridium plugs can last 150,000 miles and possibly more. Hoses are tough to gage. I have two vehicles with 150,000 miles and original hoses.


If you want the job done right......do it yourself.
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4690117
03/10/18 12:25 AM
03/10/18 12:25 AM
Joined: May 2012
Posts: 1,567
The land of USA-made Subies!
SubieRubyRoo Offline
SubieRubyRoo  Offline
Joined: May 2012
Posts: 1,567
The land of USA-made Subies!
As long as you dont have a new Hemi plugs should make it to 100k. It wouldnt hurt to remove, check/regap, and re-antisieze at half that.

If you have a Hemi plan on 30k. My stepsons 2009 Ram was at 39k on plugs and the gap had opened from .043 to well over .060 on every plug and it was idling rough and throwing misfire codes intermittently.

Re: When to change water hoses? Spark Plugs? [Re: JHZR2] #4690175
03/10/18 05:19 AM
03/10/18 05:19 AM
Joined: Oct 2008
Posts: 19,135
Sunny Florida
SteveSRT8 Offline
SteveSRT8  Offline
Joined: Oct 2008
Posts: 19,135
Sunny Florida
Originally Posted By: JHZR2
My early 1980s Mercedes still have original hoses!


We simply do not change them at all anymore. Hoses seem to last the life of the vehicle in our experience.

New gen hemi owners should note that the 14 RAM I own has fancy plat/iridium hybrid plugs and requires changes at 100k miles.


"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4690196
03/10/18 06:43 AM
03/10/18 06:43 AM
Joined: May 2015
Posts: 915
Frogland / Brittany
Popsy Offline
Popsy  Offline
Joined: May 2015
Posts: 915
Frogland / Brittany
Same here, changed a few hoses in both Barchetta (1996 and 1998), but that was mostly due to them being damaged when removed for other maintenance. I also have a Fiat diesel from 1998, only the turbo output hose has needed replacement, due to being twisted too often to change parts underneath (my fault).

I'd say if you keep the cooling system clean and change fluid regularly, good chances are the hoses will be fine for years and years.


96 Barchetta, Motul 300V 5W40 | 98 Barchetta, Quartz 9000 energy 5W40
05 Forfour 95, SHU 0W40 (gf's car) | 10 Colt Ralliart, 300V 0W40
Re: When to change water hoses? Spark Plugs? [Re: jrcowboys] #4690227
03/10/18 07:42 AM
03/10/18 07:42 AM
Joined: Nov 2006
Posts: 20,111
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,111
MA, Mittelfranken.de
I wouldn't worry about the hose but keep an eye on plastic cooling system parts eg expansion tank. These engines are prone to transfer pipe leaking and its a huge job with OE tubes but there are aftermarket collapsible tubes that make the job much easier and work well but its still a big job. That would worry me a lot more than hoses.


ASE L1, Master. Deutsch Meisterbrief.
Re: When to change water hoses? Spark Plugs? [Re: Trav] #4690262
03/10/18 08:36 AM
03/10/18 08:36 AM
Joined: Aug 2010
Posts: 5,737
Champlain/Hudson Valley
Kira Online content
Kira  Online Content
Joined: Aug 2010
Posts: 5,737
Champlain/Hudson Valley
Years ago I asked about hose longevity on several boards and got NOTHIN' from anybody.
I asked at dealerships and garages with the same results.

5 or 6 years ago I couldn't take it any more and replaced the 4 hoses in my sister's 1999 Jeep Cherokee 4.0l at about 160K and 13 years of age.
They too felt OK during the "squeeze test".

After the job was done the new hoses looked like filet mignon under the hood and the oldies lying on the ground were dry and had a patina of ultra-fine cracks.
The hoses' interiors, however, had a bit of crumbliness to them. One fellow had mentioned that now-a-days hoses break down from the inside.
I had no reservations at all. If I was a year or two early, no biggie.

More recently a Volvo mechanic I trust mentioned never changing them. "300,000 easy" is what he said.

Were the '99's hoses improved possibly to a point which is not as good as current hoses? I won't know before I meet God and I ain't fretting it.

I'll look at today's hoses' exteriors at 15 years and their interiors whenever I have a chance.
If I see crispiness or evidence of those crumbles, out they'll go.

Plugs are another matter. They have stated lifespans as mentioned above but I've seen plugs hold their gap and others widen quite a lot.
I'm numbed by a dozen years of driving Volvo 5 cylinder engines with the 3 electrode plugs.
No need to think or even look at 'em...just change 'em at 60,000.
They've never looked BAD; just their edges become a bit rounded off come 60K.


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