ok, so I just got my 2003 325ci, and the Service Engine Soon light
comes on....browsing back through old threads, I see a commom culprit
is a loose gas cap. Someone had mentioned that you must hear 2 clicks
before the gas cap is completely sealed and tight and wait a few days
for the light to go away...
when I turn my gas cap to tighten it, I hear one click, however the
cap rotates back a little and I hear the click again, as if it undid
itself.....worn out gas cap or am I not tightening the thing the right
way? I think the gas cap is not worn out considering after I open it
up, i can hear the pressure release inside the gas tank...it doesnt
seem to lock in place after clicking...
The loose gas cap is merely one of a whole laundry list of causes. It is
just the cheapest and easiest to fix.
Another reason is a bad O2 sensor. Those things get hot.
But you need to get the codes downloaded and interpreted. Just because
those two are the most common causes does not make either of them the reason
for your problem.
Also, these codes are really emission control issues. Many a time the car
will run fine (but don't let that fact keep you from fixing the problem).
Go to AutoZone, they will give you a readout and
give you a few remedies. I was getting a code for a
faulty O2 sensor. One of their remedies was check
connector, Bingo!!! Reconnected front sensor lead
and within a couple of startups the light went out.
took it to a mechanic who did a computer readout of the
code....computer says its a thermostat problem. Thermostat seems to
level off at the halfway mark on the dash console.
however after doing to computer scan, the light is not on
anymore...the mechanic says he didnt clear the codes (?) and that it
will come back on after a few starts..
I have a 30 day warranty on the vechicle so I plan to have the
dealership check out the problem as well and if their readout is the
same, for them to replace the thermostat. The car only has 53,500
miles on it so am surprised the thermostat would be the problem with
so low miles.
Thermostats don't wear with mileage - they either work or they don't work.
30 day warranty? 12 months at least if insurance backed or 3 months if dealer
What type of dealer did you buy this from? Shady back street Joe?
On Apr 1, 4:52 pm, email@example.com wrote:
it was a used car lot from a Ford dealership.....they only gave a 30
day or 1000 mile warranty....it has 53,500 miles so hence why they
didnt want to give a longer warranty....the engine and drivetrain are
in excellent condition so Im assuming the thermostat is just a quirky
part that needs to get replaced ...
Thermostats on E46 are prone to failure because of the weak plastic housing
that hold the thermostat in place. It'll fail when the plastic breaks. I
just got mine replaced recently, the two plastic hooks broke and the
thermostat kept open, keeping the engine overcooled.
Ask the dealer to have a look at the suspension parts as well.
On 4/1/07 11:26 PM, in article
On 1 Apr 2007 15:26:39 -0700, firstname.lastname@example.org wrote:
You must be joking! You have been ripped off but then again you are in the USA.
53K miles - it isn't even run-in yet? Most BMW engines go on for 200K miles and
the chassis only start to need real attention after about 10 years.
This must be a real heap of rubbish or the FORD dealer is frightened about the
urban myth the BMW cost a lot to fix.
Or perhaps you just don't have a clue about how used cars are sold in
The only place that is likely to provide a warranty (any longer than 30,
60 or 90 days required by local laws) on a used BMW would be a BMW new
car dealership, and then only on those cars that it "certifies" for the
Certified Pre-Owned program. The dealership then collects an additional
amount during the sale to cover the expenses of what in reality is an
extended warranty insurance program.
Executive summary: You don't get any real warranty on used cars in the
US unless it is still covered by the original factory one or you buy one.
I think the Ford dealer does not want to warrant a car that it might have to
actually do repairs on. I suspect the OP can go to a BMW dealer for warranty
service. Having said that, BMW might resist taking warranty service on a
used car that it did not sell. Warranty work is, after all, a function of
(at least in part) sales profits.
Personally, I'd not come within a mile of the Ford dealership except to
drive past on the way to somewhere else.
Open your Yellow Pages and find an independent BMW service center, and form
a new relationship over there. Second, get an OBD II scan tool for about
$80, and pull codes yourself. The scan tool will give you the codes and
I'd suggest you keep a log of the first code(s) you get, then reset the
codes and if the light comes on a second time, then pull codes and fix
whatever is a repeat code. Codes can be stored for a very long time that
occur only once or twice. You may not be having a problem that demands
service. Getting the same code a few hours apart (operating hours) is cause
When you get the same code twice, then leave it the second time and call the
repair shop if you do not know how to handle the repairs.
Your 5 year old car with just over 50,000 miles is a "spring chicken." It
will give you another 200,000 miles of service without any major repairs.
The minor repairs (ones such as what you are reporting here) are perhaps the
easiest to perform than on any of the other vehicles I've owned. I squoze in
excess of 200,000 miles from the factory clutch on my first '94 3 Series.
I'd still be driving that car were it not for an old lady with a double-knit
pants suit and blue hair making a left turn in front of me. Brake work on
these cars is the easiest to do for any ov my several cars and trucks.
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