wheres my coolant going?
Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 5 Series
Forum Discription: This forum will deal with any issues on the BMW 5 Series (E12, E28, E34, E39, E60 & E61)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=31612
Printed Date: 11-June-2024 at 21:23
Topic: wheres my coolant going?
Posted By: xray
Subject: wheres my coolant going?
Date Posted: 02-July-2006 at 23:19
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Hi folks Coolant water seems to be vanishing from the rad on my E34 2.0L. I'm topping it up daily now but there are no apparant leaks in the system, certainly no puddle of water under the car. Had an over heating incident a few months back when the plastic vent valve beside the filler cap went awol on the motorway, and she blew all her water out of the subsequent hole! I managed to limp her to some nearby services with the needle in the red. She eventually cut out and refused to start again, travelling back home via AA relay. The vanishing water trick seems to have stemmed from this event. Anyone got any ideas on where the water is going??
------------- E34 520i se 1995 Problems are always easy.. solutions are the difficult bit. |
Replies:
Posted By: Drew540i
Date Posted: 02-July-2006 at 23:42
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Yes, a cracked head from when you drove it with no
coolant! Just keep putting water in......... |
Posted By: fingerman
Date Posted: 03-July-2006 at 10:23
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Hmmm - had a similar issue with my 530 (12v) but never got round to fixing it in the end - although I was pretty sure it needed a new radiator On a few occasions the temp went in to the red so it was time to put the heaters on full blast to get it down !  - Roasting !!! - rather me than the car !------------- Current: E34 1996 525tds 113-125k Previous: 9xE34s, 5xE30s, 2xE39s, 1xE32, 1xE36.... phew! My Ebay bits: http://search.ebay.co.uk/_W0QQsassZseany69ukQQhtZ-1 |
Posted By: Doive
Date Posted: 03-July-2006 at 12:26
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As Drew says, quite possibly a cracked head from when it boiled. Should be easy enough to pick up a replacement head.
------------- 1987 BMW 525e Lux Auto (sadly deceased) http://www.getfirefox.com - Get Firefox - Ditch Hopeless Inertnet Exploder http://www.doive.co.uk - www.doive.co.uk 
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Posted By: 540 V8
Date Posted: 03-July-2006 at 15:41
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'Ditto the above' Mike ------------- 
Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto Previous:E34 530iSE AC Schnitzer suspension. E28 525e auto-Standard |
Posted By: xray
Date Posted: 05-July-2006 at 01:13
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Thanks for the answers folks. Looks like the head then I've just done a fuel consumption check across the last 1000 miles and got 29 mpg even allowing for the 12% error on speedo/odometer (according to sat nav). I think thats pretty fine for a 11yr old with 160,000 on the clock! So theres not to much wrong with the old girl and she probably deserves a fresh head.
------------- E34 520i se 1995 Problems are always easy.. solutions are the difficult bit. |
. Oh well, I've got an intermittent tappy valve as well, so maybe a recon head can kill two birds with one stone!