Last post on Jul 18, 2012 at 3:14 PM
You are in the Mercedes-Benz C-Class
What is this discussion about?
Mercedes-Benz C-Class, Hatchback, Sedan, Wagon
#78 of 202 1995 C220 on board diagnostics (OBD)
Apr 25, 2005 (4:51 pm)
I will own a 1995 C220 tomorrow. Has anyone used an OBD diagnostics tool with this or other Mercedes? Any recommendations on a particular one? The price ranges are from $130 to $1,695. I don't want the most expensive nor do I want to get one that is inadequate. Are any of them adequate for a Mercedes or does Mercedes have numerous codes that can't be diagnosed by a third party diagnostic tool?
I don't want to be a rocket scientist, just be able to tell, for example, when it's the mass air flow sensor that's causing the "check engine" light (which it is right now, by the way, according to a mechanic). Does something like that require special calibration that has to be done at a shop?
#79 of 202 Re: 1995 C220 on board diagnostics (OBD) [jcolby]
Apr 28, 2005 (7:37 am)
I figured this out by getting a subscription to ALLDATAdiy.com, which is a good deal. They're the only ones who carry model-specific manuals (on-line) for Mercedes.
The 1995 Mercedes C220 is OBD-II compliant so I just have to decide on which OBD-II scanner now. They all will read the "generic" codes, I'm trying to find one that will read proprietary Mercedes codes at a reasonable price (max $300).
#80 of 202 Re: Wrench light on dash c230 [ehanekom]
Apr 28, 2005 (2:08 pm)
if you look at the left side of the gauge bezel on your dash instruments, you will see three tiny buttons. Two of them adjust light and dark on the dimmer of your instruments, and the other resets your trip odo. Push it twice to reveal the mileage reading, then hold it down till it resets.
#81 of 202 Engine Warning - Gas lndicator Flashing
May 10, 2005 (5:47 am)
Being the A-type perfectionist that I am, I am becoming really frustrated by my 2000 C-Class Kompressor's Engine Warning Light coming on due to the "Low Fuel Indicator light" flashing (despite lots of fuel in the tank).
The Manual says that this is either due to a) me not putting my gas cap on properly (unlikely - see reference to A-type personality) or b) there is a leak in the gas line.
I have taken it to the MB dealer now 3 times for this issue (2wice under warranty). The first two times they stated that it was just a glitch and they "reset" the system. Then it happens again in a few weeks. The third time they made me replace the gas cap as it was "faulty" at a cost of $125. Still the light intermittently flashes, which then leads to the Engine Light, which I of course cannot reset manually.
Does anyone else have this problem? I don't have a fuel line leak and my gas cap is ALWAYS on tight. I'm also beginning to wonder if MB knows what they're talking about.
#82 of 202 Re: Engine Warning - Gas lndicator Flashing [gurekian]
May 10, 2005 (5:56 am)
I think that the prime suspect is the fuel sending unit, a well-known and common problem with German cars in the last 4-5 years. The supplier [Siemens? Bosch?] seems to have produced the same unit that gets used in several German makes, and they have a habit of failing because [allegedly] of the higher sulfur content in American fuel.
However, it is precisely because this is such a well-known problem that I have some doubts - surely your dealer has thought about this possibility? If not, put the thought into their collective heads. The most common symptom of the sending unit problem is pretending the tank is empty or nearly so, when in fact it can be completely full - sound familiar?
#83 of 202 Re: Engine Warning - Gas lndicator Flashing [jrct9454]
May 12, 2005 (9:45 am)
Thanks for the quick feedback. I'll have to bring it up with them and ask if that might be the issue. The only thing though is that the fuel light does not just light up, but flashes until I turn the car off and restart again. Along with the amber "Check Engine" light it becomes quite the light show when driving at night.
My understanding is that when the car comes to a stop, engine running, it performs a quick "pressure check" on the fuel line to make sure that there is no leaks, either through the improperly tighted gas cap or through an actual leak in the fuel line. MB has said that they performed a pressure check on the system and found nothing. So is the sensor faulty?
The car's operation has not suffered at all - just my mental aggravation!
Can I reset the "Check Engine" light myself?
#84 of 202 C230K hard to start
May 14, 2005 (4:59 pm)
My C230K with only 24,000 miles has developed a strange problem.... when cold (meaning "in the morning" no matter how warm it is outside), it just cranks without starting; the second attempt to start makes it run rough at first, then eventually it levels off. After this, drives okay till next morning. No fault has been detected by dealership... any idea what it can be? Many thanks!
#85 of 202 C230 repair costs when out of warranty
May 16, 2005 (10:09 am)
I am curious if anyone can give me any advice on repair costs on Mercedes? I have a 2002 that is off warranty in Feb 2006, and wonder if they "see us coming" so to speak and charge a lot for repairs. I know when the dealership changed the oil, which was part of the Service A visit, on paper it showed $90 in charges. Is that something an owner can do themselves? I am debating about selling the car prior to the warranty expiring, if it will be expensive to work on. Any advice would be most appreciated.
#86 of 202 C220- No start after Mass Air Flow Sensor replacement
May 18, 2005 (7:24 pm)
Has anyone had any experience with this? I just bought a 1995 C220.
The previous owner was experiencing shutdown while driving. One
mechanic said there was a Mass Air Flow Sensor diagnostic code and
several oxygen sensor codes. Another mechanic said there was only a
Mass Air Flow Sensor diagnostic code. I bought the car and figured
out what kind of scan tool I needed, etc. Prior to getting the scan
tool I started the car just to run it a while so it would be easier
to start later. While idling there was significant vibration which
seemed to come from the right rear and the engine shut off. Wouldn't
I got the scan tool and when I ran it the Mass Air Flow Sensor
diagnostic code came up and this came up on the "freeze data": Fuel
System 1: CLSD.
I got a new Mass Air Flow Sensor and installed it. I erased the MAF
code and now everything checks out OK, no codes. When I go through
the "view data" feature I now get: Fuel System 1: OPEN.
It still won't start. I put a full charge on the battery to make
sure that wasn't the problem.
My question is this: I'm assuming that the fuel pump is programmed
to shut off if the Mass Air Flow Sensor problem isn't fixed within a
certain period of time and that this is what happened when I was
idling. Is that correct? Second part of question: is there something
I have to do in regard to the fuel pump once the Mass Air Flow
Sensor problem is taken care of? If no answer I'll probably have to
tow it in to a mechanic- I don't think I want to mess around with
measuring fuel pressure, etc.
#87 of 202 Maintenance questions for owners
Jul 02, 2005 (11:40 am)
A family member is considering an '05 C230 Sedan. This would be the first MB to be added to our "fleet". I'm aware that free maintenance is no longer part of the program. That means the routine maintenance will end up being done by me.
Have any of you done your own oil changes on your C-class? What type of oil and filter do you use? How many quarts does the 1.8 engine use? Is there an easy way to reset the service reminder after the oil change is done, or will I need a tool similar to BMW? Is there a factory service manual available?
I've reviewed what the dealer will do and charge for the "A" and "B" services and unless I'm missing something, I'd rather peform the routine service myself.
Thanks in advance for your feedback!