Perhaps you need to clean your heater core with foaming cleaner designed for
this specific purpose... it also cleans your evaporator. It is probably mold
you are smelling and all the gunks that is stuck there.

I believe your car has electronic fuel injection not CIS fuel distributor
type... It can be two thing... bad fue injection temperature sensor or leaky
fuel injector.

No it shouldn't be necessary. They do leave enough so you can get the
cluster partially out.

You should check into it like you said... repair it or replace it.

ITEM #1

How does one go about cleaning the heater core with the foam? Does it have
to be removed first? Is it difficult to access it?

I bought my 89' 300E back in 97', and it has always had a bad smell inside
(it hasn't gotten better or worse). When I get in, I always open the
windows for a few minutes... It's always that same characteristic foul
smell...possibly the same one that Oneguy is experiencing. I checked under
all of the carpets, and there is no mold under there. Are there any other
common causes of foul odor in the Mercedes from the 89'era?


"Tiger" <tiger0002 (AT) hotmail (DOT) com> wrote

On Mon, 22 Nov 2004 09:47:55 -0500, "News Groups" wrote:

More Information = More Help

Can you describe the smell in a bit more detail than 'foul'?

Rotten eggs, fish, garlic, shit, wet carpet, compost, bananas... sorry
these weren't suggestions, it's my extra toppings list for my pizza
order ;o)
Mike
--
W126 300SE
W115 220/8

Hot starting problems may be caused by any pressure leak in the fuel
injector system. Diagnose with high-pressure fuel pressure gauge (not
cheapy from local auto store - http://www.toolwarehouse.net has one
for Mercedes) and a clamp to shut off flow in rubber hoses. Get a
fuel system diagram from your service manual and locate all the places
fuel is. It probably will not be a big leak, but a tiny leak can
cause the pressure to drop and allow the fuel in the system to boil
into vapor, which will have to be purged through the injectors when
you crank it until liquid fuel gets to the injectors and it starts.
Probably it is not a leak to the outside of the system but rather from
the high pressure side to the low. If not the fuel accumulator, might
be the check valve or pressure regulator in fuel distributor or any of
the little other regulators, valves, adjustors, or compensators in the
system. Any place where there is high-pressure fuel is a potential
pressure leak.

A leaky injector is always a possibility. You might want to go a
couple of tanks with good injector cleaner in the fuel before you
start anything else. Of course, one of the temperature sensors on the
engine may be defective.

Diagnose before you replace - you will run out of money before they
run out of parts. Fortunately, most of these things are easy to
replace and not really expensive (at least, not expensive for
Mercedes).

"..... Diagnose before you replace - you will run out of money before they
run out of parts. ...."

You ever run modified stocks on the dirt tracks in the Carolina's ? You just
quoted The Scripture of amateur racing.

Larry
In the back yard, under the oak.

The foam cleaner is supposed to be injected from the drain plug by the
evaporator... Anyway you can squirt the whole bottle in is fine.

It cleans by the fan blowing the foam cleaner through the heater core and
evaporator... later condenses into liquid and drains out.

Do a search for air conditioner evaporator cleaner and you should run into
any company... I bought my bottle for $12 each... whereas alot of people
wants $30 or $50 per bottle.

News Groups wrote:

throughout.