Question about 2003 Volkswagen Beetle TDI

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Flashing temp light

When i drive the vehicle normally, and the vehicle has reached normal operating temp, the temp light( blue ) comes on and flashes repeatedly for several minutes then goes off. And will return when ever it feels like it. The vehicle is operating normally and feels like its running fine, aswell the coolant reseviour is full when cold and at normal operating temp. * NOTE: the bottom part of the air intake filter box has been removed and has a performance K&N air filter. Increased air into the engine shouldnt have caused this. All sensors are still connected. Whats going on here? has anyone had this happen? If you have the answer to my question i would be very greatful! Thanks

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MOST NEW CARS DONT LIKE AFTER MARKET PARTS THE COMPUTER IN YOUR CAR DOESNT RECOGNIZE THESE PARTS SO YOU MIGHT BE GETTING FALSE READINGS ASK YOUR VW DEALER ABOUT THIS

Posted on May 13, 2010

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Heater donot get hot whil running


It could be a plugged heater core or heater control problem. I assume the blower is working, but the air is cold. The first thing to check is the coolant level, make sure there is coolant in the resivoir. Next see if the temerature gauge reaches the normal operating temperature range. If the gauge reads cold most of the time, it would tell you that the thermsotat is faulty and not allowing the engine to reach full operating temperature. If your car doesn't have a temp gauge, the blue cold engine light might stay on for an extended period of time. The thermostat is supposed to not allow coolant flow in the radiator until the engine reaches operating temperature. If you drive the car for a couple of minutes, from cold start, the radiator or upper hose should be cool until the engine reaches operating temp.

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ON-BOARD DIAGNOSTICS Dodge OBD1 Pre 96

1. Cycle the ignition key ON-OFF-ON-OFF-ON within 5 seconds. To cycle the ignition key ON means to turn it only as far as it takes to get the radio to come on. It does not mean to turn the engine on.

2. Count the number of times the "check engine" lamp on the instrument panel flashes on and off. The number of flashes represents the code. There is a slight pause between the flashes representing the first and second digits of the code. Longer pauses separate individual codes. For example, flash-flash-flash [pause] flash-flash represents the code 32.

A code of "55" represents end of error codes. If this is all you get then no error codes are stored in the computer. This is the normal condition

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46 Charging system voltage too low
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Hello, welcome to FixYa.

Please let me shed a bit of light on your issue.

The blue coolant temperature light comes on when the coolant is below 177 degrees. That is the bottom threshold for the Overdrive to engage. In other words, the OD will not activate, (actually, it is prevented from engaging) until the coolant temperature reaches 177 degrees F. This is purposely done, because allowing the OD to engage sooner will allow excessive emissions, with a colder engine.

There is no need to wait until the blue light goes off to start driving. Your transmission just won't make the final shift until the optimum temperature is reached. This is a normal condition.

If you have an actual issue, your 'check engine' light will illuminate, and it will stay on.

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I just purchased a 2000 VW Beetle 1.8 Turbo but, there was no Owner's Manual included with the car. A light has come on my dashboard and i don't know what it's for. It's a blue light in the shape of a...


If the light goes out after engine gets alittle warm, this is normal. Since there is no temp guage, VW uses this light to inform that the engine is cold. When that same light flashes red, it means that the coolant is low or the engine is overheating.

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