GLK-Class (X204) Produced 2008-2014

What is under this mini cap?

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Old 12-05-2009, 10:55 AM
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Lightbulb What is under this mini cap?

What is under this mini cap? Behind the front Radar-display?

Old 12-05-2009, 11:16 AM
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c240 and glk 350
QUAD SUN SENSOR
Old 12-05-2009, 07:00 PM
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high powered laser!! u.s version GLK's only!! if the grandma in front of you is going to slow, BLAST her off the road!
Old 12-05-2009, 08:05 PM
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Nissan GT-R BE / '12 Ducati-1199 Panigale S / '12 C300-4M Loaded/GLK350-4M Loaded
One of four GPS antennas
Old 12-06-2009, 04:43 AM
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Originally Posted by MBRedux
One of four GPS antennas
Any idea where the other three are?
Old 12-06-2009, 10:55 AM
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light sensor? same location on SAAB, Porsche...and...bmw...and audi...and....and...
Old 12-06-2009, 11:41 AM
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NO GUYS ,IT IS A SUN SENSOR FOR THE CLIMATE CONTROL TO ADJUST THE BLOWER SPEED AND TEMPERATURE ACCORDING TO THE SUN LIGHT ANGEL COMING TROUGH THE GLASS ,IN A NUT SHELL.
Old 12-06-2009, 11:49 AM
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temperature and vent speed is calculated based on the temp sensor outside the cockpit, usually inside the front grill and also the temp sensor inside the cockpit...

if it's going to be decide by sun...all of us will freeze to death in Canada during one of the cheating sunny cold day...with absolutely b-e-a-utiful sunshine...but -30+ windchill...

trust me guys, it's a light sensor...to be used for auto lights...including headlights...interior...etc...

sometimes, it's also a indicator for alarms...
Old 12-07-2009, 11:09 AM
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bmw x3 GLK 350 cdi
Sunlight sensor !
Old 12-10-2009, 08:46 AM
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so this is the light sensor?
Old 12-10-2009, 02:30 PM
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When the head foreman went along for a drive with my to diagnose my squeaky brakes I had a chance to ask him.

That little cap in your picture is indeed the light sensor.

And the little mesh covered hole under and by the ignition is the internal temperature sensor.
Old 12-14-2009, 04:11 AM
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Originally Posted by Kamen
When the head foreman went along for a drive with my to diagnose my squeaky brakes I had a chance to ask him.

That little cap in your picture is indeed the light sensor.

And the little mesh covered hole under and by the ignition is the internal temperature sensor.
Some said there is a GPS antenna inside the IP, any idea?
Old 12-14-2009, 04:27 AM
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bmw x3 GLK 350 cdi
the gps antenna is under the speedometer
Old 12-14-2009, 08:22 PM
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The cap covers the laser sensor. This is a leftover from the German automobile manufactures safety council program to improve safety by taking cars away from drivers that demonstrate poor driving skills. The theory is bad driving often causes accidents while not actually being involved in it. In Europe if you do something dumb other drivers can send your auto a signal by laser. If you receive 5 tags in a year’s time you receive a fine, in 3 years if you have 8 or more the German auto manufactures will not sell you a new car. If you have 12 your driver license could be revoked. I think it still works in here. You can check your status at night by putting your hand under the rear view mirror if there is no colored light you’re good,but if it is light yellow all the way to bright red you got tagged for doing something stupid.
Old 12-15-2009, 04:02 AM
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2010 GLK350 4MATIC, 2006 SLK350
Originally Posted by 02glider
The cap covers the laser sensor. This is a leftover from the German automobile manufactures safety council program to improve safety by taking cars away from drivers that demonstrate poor driving skills. The theory is bad driving often causes accidents while not actually being involved in it. In Europe if you do something dumb other drivers can send your auto a signal by laser. If you receive 5 tags in a year’s time you receive a fine, in 3 years if you have 8 or more the German auto manufactures will not sell you a new car. If you have 12 your driver license could be revoked. I think it still works in here. You can check your status at night by putting your hand under the rear view mirror if there is no colored light you’re good,but if it is light yellow all the way to bright red you got tagged for doing something stupid.

LOL It's the sunlight sensor.

/thread
Old 12-15-2009, 07:34 PM
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Have you check your status, at night by putting your hand under the rear view mirror if there is no colored light you’re good. I may have given your GLK it's first tag.
Old 12-23-2009, 11:10 AM
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Originally Posted by drifter86
Some said there is a GPS antenna inside the IP, any idea?
In a daylight cover that thing and see if instumental panel lights up, then you'll know for sure. I had that same thing on Toyota and I'm 99% sure it was light sensor.
Old 12-23-2009, 12:18 PM
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The cap is there in our SLK, it's present in other vehicles with sunlight sensing capabilities MB or non-MB. I'm like 99% sure it's the sunlight sensor. That and I asked the head foreman at MB service...

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