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#1
12-26-2014, 04:11 PM
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Check Engine Light on my C230! ! ! HELP (P0170)
Hello, so here is what happened. I NEVER press on the Gas on my cars. Never the type to go fast. I had just bought this Benz 3 weeks ago and today i sped up for the first time just to get in front of a car and my Check engine light turns on! So i opened the hood and i smelled, like burnt. Maybe oil or gas? The engine was HOT. I had only ran it about 15 miles. I took it to Autozone to get a Diagnostics and 1 troubleshoot code popped up! I got Code P0170! Anyone know what it could be? Maybe a dirty air filter? Or a dirty MAF? This car is covered by the dealership if anything goes wrong, so i can't replace or fix it my self or else the Contract would void. But i also don't want to send it in for a simple fix when all it needed was a cleaning. Is there any way i can take off the check engine light to see if it'll come back on? Or what should i do? The car turns on and runs fine! Maybe a LITTLE hesitant on accelerating? I wouldn't know! I just bought the car! THANKS FOR THE HELP
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#2
12-26-2014, 05:03 PM
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P0170 Mercedes-Benz - Fuel Trim Malfunction Bank 1
Possible causes
- Intake air leaks - Faulty front heated oxygen sensor - Ignition misfiring - Faulty fuel injectors - Exhaust gas leaks - Incorrect fuel pressure - Lack of fuel - Faulty Mass Air Flow (MAF) sensor - Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech notes Dirty air filter, air filter housing or Mass Air Flow (MAF) sensor, or faulty MAF sensor are common causes for the P0170 code. Read more: P0170 Mercedes-Benz Fuel Trim Malfunction Bank 1 OBDII Engine Light Trouble Code | Engine-Codes.com Hope this helps, Fuzz
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1998 W202 C230 - The money pit of late. 1984 W126 300SD (356,800 miles) Gone to the wrenchapart  1984 W123 300D Gone to the wrenchapart 1972 W108 280SE 3.5 (sold but not forgotten) 1986 Buick Grand National 3.8l Turbo (86k miles) 1966 Glassic Model 'A' Replica http://www.glassicannex.org  http://banners.wunderground.com/weat...Round_Rock.gif
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#3
12-26-2014, 05:09 PM
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It's under warranty. Let them deal with it.
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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress. 99 Mazda Miata 183,xxx miles.
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#4
12-26-2014, 05:14 PM
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Video to get and reset codes in C230
Check out this video: https://www.youtube.com/watch?v=fO7i_Zj_hJo
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1998 W202 C230 - The money pit of late. 1984 W126 300SD (356,800 miles) Gone to the wrenchapart 1984 W123 300D Gone to the wrenchapart 1972 W108 280SE 3.5 (sold but not forgotten) 1986 Buick Grand National 3.8l Turbo (86k miles) 1966 Glassic Model 'A' Replica http://www.glassicannex.org http://banners.wunderground.com/weat...Round_Rock.gif
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#5
12-27-2014, 10:27 AM
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Check engine light went off?!
My check engine light came off? Today i turned it on and it was gone! I forgot to mention my MPG (Mile per Gallon) went down when i got the check engine and then, when the check engine went away today, my mpg went back up? From 18.6 to 23.4? ? ? What does this mean?
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#6
12-27-2014, 06:12 PM
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Skippy' advice x 2
Since your car is under warranty, Skippy gave you the correct advice. Write down what has gone on with the car over the past day and give it to the service advisor at the dealer. As you noted, you don't want to do anything to negate the warranty.
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'89 260e (212K Mi.), '92 400e (208K Mi.), '92 400e (not a misprint) (146K Mi.), '95 C220, '81 240D--Sold
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#7
12-27-2014, 08:10 PM
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Quote:
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Graham 85 300D  ,72 350SL, 98 E320, Outback 2.5
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#8
12-27-2014, 11:39 PM
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Classic symptom of a bad MAF.
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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine) 1988 F150 144,000 miles (leaks all the colors of the rainbow) Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra
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