GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

another check engine light

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Old 05-10-2017, 01:14 PM
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97 s320
another check engine light

yup another check engine light, they just keep coming.
i haven't checked what it is yet but so far its been
nox sensor $400
adblue heater $600
tires $1200
front strut $400
i can't make 12 months without a check engine light
not to mention $80 oil changes and $140 transmission fluid service

expensive junk
09 gl320 bluetec
120,000 miles
Old 05-10-2017, 03:19 PM
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1999 E300TD
You aint seen nothing yet!!
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Old 05-12-2017, 06:04 PM
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2007 W211 E350 4Matic / 2008 X164 GL320 CDI
Have you had it since new, or did you get it used?
Old 05-13-2017, 12:51 PM
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97 s320
Originally Posted by N_Jay
Have you had it since new, or did you get it used?
used almost 2 years ago july 15
Old 05-13-2017, 07:36 PM
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2007 W211 E350 4Matic / 2008 X164 GL320 CDI
Miles?
Service records?
Previous owners?
Old 05-15-2017, 09:39 AM
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97 s320
Originally Posted by N_Jay
Miles?
Service records?
Previous owners?
one owner dealer maintained, all records
many, many receipts
i guess that should have been a clue to stay away
Old 05-15-2017, 10:03 AM
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2007 W211 E350 4Matic / 2008 X164 GL320 CDI
Are you using a dealer to service?
Have you found a GOOD independent shop?

Transmission service is a once every 40 to 80K mile thing. If you can't afforest $140 (which is a good price) you did not budget for a MB (or anything European).
Same with $80 oil change for a diesel. ($80 once a year instead of $35 2 times for most cars.)
Old 05-15-2017, 10:55 AM
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GL 320, 993TT, BMW 550XI
The car has cost you less than $400 per year on maintenance outside of tires for the past two years and you are complaining? This is no different than a land cruiser would cost and you are getting almost double the fuel mileage. How is this junk?
Old 05-16-2017, 04:31 PM
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97 s320
Originally Posted by chsu74
The car has cost you less than $400 per year on maintenance outside of tires for the past two years and you are complaining? This is no different than a land cruiser would cost and you are getting almost double the fuel mileage. How is this junk?
it won't make 10 months without a check engine light
01 sienna 3 years trouble free
04 tacoma 2 years trouble free
82 380sl 1 year trouble free
94 300sd 3 years trouble free
83 300d 3 years trouble free
86 vw golf 4 years trouble free
89 vw jetta 6 years trouble free
97 s320 trouble free 2 years

Last edited by fireman1073; 05-16-2017 at 04:33 PM. Reason: add
Old 05-16-2017, 04:32 PM
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97 s320
Originally Posted by N_Jay
Are you using a dealer to service?
Have you found a GOOD independent shop?

Transmission service is a once every 40 to 80K mile thing. If you can't afforest $140 (which is a good price) you did not budget for a MB (or anything European).
Same with $80 oil change for a diesel. ($80 once a year instead of $35 2 times for most cars.)
i do my own work
maintenance is a given, its the repairs for emissions that aggravate me

Last edited by fireman1073; 05-16-2017 at 04:34 PM. Reason: add words
Old 05-23-2017, 11:14 AM
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97 s320
ok so code is 146100 control deviation is too large

star tool says check injector overflow something something (need special tool)
run o2 sensor test with tool (i did and its ok)
physically check turbo boost tubes for leaks (i ruled this out because of skipping at startup on occasion and surging while not in boost conditions)

light went out on its own and rough running seems to have lessened to rarely

I'm thinking bad fuel so I'm going to finish whats left in the tank 3/8 and fill with fresh fuel and some fuel clean and boost by hot shot secret

i will post results as they develop so someone else with similar symptoms can compare

thanks...Steve

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