Author Topic: mystery water leak  (Read 7284 times)

318lotis

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mystery water leak
« on: September 03, 2009, 11:38:14 PM »
1991 e30 318is
i have a small mystery leak , loosing about 8 oz. water/coolant daily, would that stop leak gunk help, anyone ever had succes with it?

AcSchnitzer318is

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« Reply #1 on: September 03, 2009, 11:59:28 PM »
^Might work... but I wouldn't use it even so.  Just find the leak.  What have you checked so far?  Not a whole lot to look for on these...


"A good memory for quotes combined with a poor memory for attribution can lead to a false sense of originality."

nicknikolovski

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« Reply #2 on: September 04, 2009, 04:29:30 AM »
Pressure test the system, then check for the coolant leak. Check radiator, water pump, thermostat housing, heater core, coolant outlet on the block (black plastic thing under intake manifold), check welsh plugs - (rare to leak), head gasket and front profile gasket, also temp sensors in cylinder head. Then check all hoses carrying coolant.

tntempest

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« Reply #3 on: September 05, 2009, 07:33:49 AM »
Just had a similar problem, was losing coolant but could not figure it out.  Then I noticed a little coolant on the floor under the the drivers floor.  Lifted up the mat and the floor was a little damp.  Car never smelled like coolant inside because it was such a small leak.  Almost figured it was the heater core, but took all the panels off and it ended up being the top of the valve on the heater valve.  Looks like it has been leaking for a long time.  Just a slow drip once the radiator got up to temperature and pressure.  Might be worth a look, but could be the core also.

Planner

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« Reply #4 on: November 17, 2009, 07:22:26 PM »
I have the same problem.  Where is the front profile gasket?  I can see the leak from under the car while it's running.

Planner

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« Reply #5 on: November 17, 2009, 07:31:17 PM »
Check this out....

From: L & S Mendonca [mendonca@cyberus.ca]
Sent: Tuesday, October 27, 1998 9:14 PM
To: I_am_mad_too@bmwlemon.com
Subject: BMW 318i M42 Engine Gasket Defect

The M42 Engine Profile Gasket Ripoff!

I wish to bring to everyone`s  attention a major engine defect, for
which BMW is attempting to avoid all responsibility. As a long time BMW
owner I was disappointed when, in September 1997, my 1993 318i required
a $928.00 repair to replace the head, profile and water pump gaskets.
This repair forced me to rent another vehicle at an additional $523.00
cost.  I was concerned that a well maintained vehicle that was less than
four years old, with only 92,000 kilometers on the dial would experience
such a major failure.  This was in addition to four other repairs in the
spring which totaled over $1,000.00.

I contacted BMW Canada and was offered a 'goodwill' gesture: a $300.00
credit for future repairs.  I consider this offer inadequate. I
discovered, through the Automobile Protection Association, a Dealer
Service Bulletin in which BMW Canada warns dealerships of coolant leaks
"due to a deteriorated rubber timing case profile gasket" on the M42
engine.  The Dealer Service Bulletin was issued in October 1993. I
purchased my BMW in August.  The Dealer Service Bulletin acknowledges a
major design flaw, or manufacturing error, that was not revealed to me
at time of purchase, nor was I informed of the defect during four years
of loyal service visits! If the part had failed within the warranty
period BMW would have had to repair it free, but they gambled that the
failure would occur after the warranty expired and knowingly sold me the
car with the defective gasket.

In the July 1998 issue, Mike Miller, Technical Editor of the Roundel,
the magazine of the BMW Car Club of America, wrote: "The 1991-'93 engine
profile gasket is clearly not a shining moment for BMW." He goes on to
add, "...wouldn't it make good business sense for BMW NA to stand behind
their product in this case? Do they not have a moral obligation to loyal
BMW owners to make good on this admittedly defective part?"

It seems that since a Mr. Ron Browne brought the defect to the BMW CCA's
attention earlier this year, the Roundel has "been swamped with
complaints about the problem". The sudden influx of complaints surprises
me, because the October 1996 ‘Die Werkstatt' column in the Roundel
details the problem succinctly. Jenny Morgan, contributing editor,
wrote: "...there's a little gasket in them (the M42 engine) that can
make your own personal Chernobyl....When it blows out, the leak can be
sudden and significant."

In the December 1998 edition of BIMMER magazine contains an article on
purchasing used BMWs, written by Associate Editor Alexander Palevsky. He
writes, "Perhaps more than any other recent model, the E36 was
introduced with teething problems that took a few years to straighten
out. The cost of replacing items like the faulty profile gaskets...can
constitute a significant percentage of the asking price.....check the
paperwork for a profile gasket replacement on 318s."

Because of this Dealer Service Bulletin, and these articles by
knowledgeable technical writers,  the 'goodwill' offer by BMW seems to
be nothing but a sop to cover poor engineering and indifferent customer
service. A golden opportunity to earn customer loyalty and consumer
respect has passed, now BMW has nothing to look forward too except
damage control and legal actions. Please read the June or July edition
of the Roundel, or call David Honig, the BMW CCA Ombudsman, to confirm
the damage done to BMW reputation for engineering excellence. In a
telephone conversation with him, he estimated that as many as twenty
thousand 1991 to 1993 E30 and E36 models have the defective gaskets,
which costs an average of $1,200.00 to repair.

I have filed suit in small claims court to recover my costs and damages,
seeking $4,327.73. BMW Canada offered $2,000.00 to settle, not enough,
but at least they are heading in the right direction. To read my
Statement of Claim go to:
http://www.eskimo.com/~dalus/bmw/all/engine/all_m42_profile_gasket_defect_lib.html

A FAQ on the subject is:
  http://www.eskimo.com/~dalus/bmw/all/engine/all_m42_profile_gasket_faq.html
I will soon post BMW Defense Statement for you to judge for yourself.

 I would appreciate anything you could do to publicize this scandalous
lack of business ethics. Not only did BMW knowingly sell defective cars,
but they never informed owners that their M42 engines were ticking time
bombs, destined to fail in an expensive and unnecessary manner. The more
owners who know that they are not the alone, the more pressure we can
put on BMW to do the right thing.

quinn11m20

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« Reply #6 on: November 17, 2009, 07:34:49 PM »
I wouldn't use the Gunk stop leak. They really gum up your pump and radiator. If you choose to have the system flushed and checked by a mechanic. Reputable mechanic. I can personally vouch for the destruction of my radiator because of that stuff. I thank the Lord that I didn't do some serious engine damage. When I got home, turned off the car, everything seemed normal, but seconds after shutdown. Well lets just say the top hose exploded because of pressure and coolant spilled out onto the ground.
It was a Friday afternoon as well. Man was that a bitch.f

quinn11m20

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« Reply #7 on: November 17, 2009, 07:43:06 PM »
You know love is a strange thing. I would be outraged if what had happened to you happened to me. As well as you are. I have had some quirky little things go on my car. Things I thought were "time for it to go". Of course I have more considerable mileage than you do, 251k to be exact. But I would not take up a claim in court against BMW. I have had my baby since 97 and plan to keep her much longer. I have had a radiator and two pumps, two thermostats, an alternator, and some performance stuff I have either added and or replaced. Of course if I invest in a new BMW and it had gremlins, I would expect BMW to service it.
I couldn't in any good grace support that claim, I apologise.

DesktopDave

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mystery water leak
« Reply #8 on: November 17, 2009, 09:45:23 PM »
I wouldn't use the StopLeak.  Do it right & repair the profile & head gasket.

I'm not picking on you for your post, but as for the other guy...
He had a bad experience, why not read a little and understand what hard working, smart people  have done to maintain and treasure these superb little cars.  Seems like he went to a dealer to have them do all the work for him, and he's upset that it was expensive?  Why didn't he ask us for some advice first?  We know this engine and these cars inside out...don't insult our intelligence with this class-action nonsense.

Well, seems like he wanted the full BMW experience.  I'll bet he enjoyed the cappuccino while a mechanic in a pristine lab coat held his hand and explained the bill to him in the waiting room.  I wonder if he's a little wiser?  You know, there are members on the board that are repairing their cars outside, in freezing weather, with inadequate tools and secondhand parts they've dug out of wrecks at the pick-n-pull.

He should have tried a little research in the future, before posting this plaintive, angst-ridden, over-privileged garbage.  For his information the profile gasket is a well-known issue.  It should have been installed as part of a BMW service bulletin/recall campaign.  His problem is far from unique.  The problem is that he chose to do your research after he bought the car twice over.  He should have had the car's full repair history in his hands.  He opted not to do that, and paid the price.  Please be aware that buying cars is always an exercise in "buyer beware."  Seems like he'll be paying an attorney to do more of the work for you.  Why not save the money & do the work yourself?

I'd prefer to take BMW to court for their styling.  I'm suspecting they made their cars this ugly just to give Mercedes & Audi a chance to make up some lost ground.  iDrive is more of the same.  Furthermore, BMW has had significant problems with the M50, the M60 and the M70.  His repairs were significant but it could have been far worse...what if he had bought a 750iL?!?  Drive the car, enjoy it, but cut it loose if you get a bill like that.  Don't let your common sense be overwhelmed by emotion.  How much is the car worth?  How much was the estimate?  You do the math, or not.
« Last Edit: November 17, 2009, 10:06:56 PM by DesktopDave »
'08 Karmesinrot 128i 6MT
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Sold: '97 Montrealblau 318iS, '91 Brilliantrot 318i, '91 Brilliantrot 318iS

quinn11m20

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« Reply #9 on: November 18, 2009, 04:58:33 AM »
Very True Dave, very true.