E-Class (W211) 2003-2009

Balance shaft codes @ 133k- Advice!!!

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Old Jun 4, 2018 | 06:15 PM
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Balance shaft codes @ 133k- Advice!!!

I had a check engine light come on a few weeks ago then went off the day after. Had the code checked today and it was 1200 & 1208, balance shaft related. Not what I expected. The light has not returned and engine sounds fine. Although I am confused, my engine was not in the range and I'm at 133k. So I thought at this point I was past the expected frame of failure. I was told to monitor and that the CEL may return and stay on.


What is damage will incur if I remain driving if the light were to return?

Any feedback? Thanks

Last edited by OnlyGerman; Jun 19, 2018 at 07:12 PM.
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Old Jun 4, 2018 | 08:17 PM
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Per listed VIN your car / engine is definitely in range. Unless you can do the repair yourself - drive it until it doesn’t drive anymore. Having the repair done by a shop or dealer equals or exceeds the value of the car. After that, depending on the overall condition of the car, you could consider finding a good used engine or scrapping it for parts.
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Old Jun 4, 2018 | 08:37 PM
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Originally Posted by kjb55
Per listed VIN your car / engine is definitely in range. Unless you can do the repair yourself - drive it until it doesn’t drive anymore. Having the repair done by a shop or dealer equals or exceeds the value of the car. After that, depending on the overall condition of the car, you could consider finding a good used engine or scrapping it for parts.
That is exactly what I plan to do. If I can get another 10-20k, ill be happy.
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Old Jun 4, 2018 | 09:51 PM
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I think you’ll get that no problem. The dealer that helped me DIY mine said they know of an ML with 80k miles since the check engine light came on with balance shaft codes.
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Old Jun 5, 2018 | 06:13 PM
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It's a 2006 model. All 2006 were in the affected range. You could keep driving it like that til it won't start. I don't think you'll get 80k out of it, but reports from others seem to say that it's about a few thousand miles before it wouldn't start one day. The repair parts are somewhat reasonable, only a few hundred, it's the labor to remove the engine that's expensive.
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Old Jun 5, 2018 | 06:17 PM
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Might be time to punt.
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Old Jun 5, 2018 | 09:27 PM
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Weird part is that the light went away and has not retuned since. I guess the doomsday clock will start once the light has returned and won't go away. I thought about maybe getting it fixed but then it'll be the SBC pump. Gotta stop somewhere.

Last edited by OnlyGerman; Jun 5, 2018 at 10:04 PM.
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Old Jun 6, 2018 | 02:14 PM
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Yeah, your best bet may be to trade it in now before it won't even run or before the light comes on permanently. I always see ads online from people trying to sell 2006 models with the light on and claiming that they don't know what it is and it's probably nothing when it's really something major like the balance shaft.

I think for 2007/2008 models, sometimes it's the sensors, but for a 2006, it's probably not that. There are youtube videos that will tell you how to check the status of the balance shafts.
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Old Jun 6, 2018 | 09:13 PM
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Originally Posted by cetialpha5
Yeah, your best bet may be to trade it in now before it won't even run or before the light comes on permanently. I always see ads online from people trying to sell 2006 models with the light on and claiming that they don't know what it is and it's probably nothing when it's really something major like the balance shaft.

I think for 2007/2008 models, sometimes it's the sensors, but for a 2006, it's probably not that. There are youtube videos that will tell you how to check the status of the balance shafts.
I’ll end up keeping it and taking that risk. Not like I’ll get much if I traded in anyway. Even though its highly optioned with the amg package, I’ll be lucky to get 3k on trade. Probably a good gamble to drive it out and see if light returns. Also tires and front brakes are pretty new.
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Old Jun 6, 2018 | 09:56 PM
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I doubt you'll get 80k out of it, most people on here seem to just get a few thousand before the car doesn't start anymore. But if it took 133k to go, maybe you'll get lucky, sometimes they went at 60-80k. Trade in is probably in the 4-5k range. I believe repair at the dealer is 5-7k, an indy maybe 3-5k, under $500 in parts if you can diy and remove the engine.

https://www.fcpeuro.com/products/mer...des-2720300613
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Old Jun 6, 2018 | 10:18 PM
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Originally Posted by cetialpha5
I doubt you'll get 80k out of it, most people on here seem to just get a few thousand before the car doesn't start anymore. But if it took 133k to go, maybe you'll get lucky, sometimes they went at 60-80k. Trade in is probably in the 4-5k range. I believe repair at the dealer is 5-7k, an indy maybe 3-5k, under $500 in parts if you can diy and remove the engine.

https://www.fcpeuro.com/products/mer...des-2720300613
yeah not expecting 80k, that would be a miracle. From what I read, mostly all failed under 100k so I assumed if you made it quite past that, I would be clear. I will ask my Indy just to see what he says as he has done many of these. I’m also expecting that 3-5k range.
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Old Jun 6, 2018 | 10:22 PM
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There's no upper limit on the mileage. There are people who come here with 160k on it and it starts to go.
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Old Jun 19, 2018 | 07:11 PM
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So it seems the CEL is only coming on when the tank is below half. Once I refill to max, it goes away...How is this related to the balance shaft?
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Old Jun 19, 2018 | 10:02 PM
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It's a balance shaft after all. The sprockets wear away. Gas is about 6.3 pounds per gallon. With a 21 gallon tank, that brings you about a 66 pounds in additional weight in the rear to tip the engine one way. Did you scan it again to see if it's the same codes? Final verdict could be just a coincidence, after a half tank worth of mileage, it decides to come on.
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Old Jun 19, 2018 | 10:49 PM
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Originally Posted by cetialpha5
It's a balance shaft after all. The sprockets wear away. Gas is about 6.3 pounds per gallon. With a 21 gallon tank, that brings you about a 66 pounds in additional weight in the rear to tip the engine one way. Did you scan it again to see if it's the same codes? Final verdict could be just a coincidence, after a half tank worth of mileage, it decides to come on.
I am confused...can you explain? I have not scanned the codes again but I will next time the cel is on. I did have the fuel tank replaced due to the odor not to long ago as well.
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Old Jun 20, 2018 | 07:05 AM
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Originally Posted by Kushp14
I am confused...can you explain?
I think what he is trying to say is to test your theory, when the tank is below half full, clear the codes, put a couple of adults in the back seat, and see if the CEL comes back on. Again, he is saying that with the additional weight of the gas in the tank, it may be enough to "lean" or tilt the car enough that the engine also tilts or leans and you do not get the codes.
Mike T.
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Old Jun 20, 2018 | 10:49 AM
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No way the two are related.
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Old Jun 20, 2018 | 11:47 PM
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Originally Posted by kjb55
No way the two are related.
Right. I was just trying to point out a logical fallacy. Correlation does not imply causation.
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Old Jul 24, 2018 | 10:33 PM
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So I have driven 3k since the diagnosis of the balance shaft. CEL still comes on then disappears, still drives fine no noises or noticeable changes.
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Old Jul 25, 2018 | 09:40 AM
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Unless the CEL will mess with emissions testing (if you need it in your area), drive it until you can't. My local dealer has an customer with an ML350 that has been driving it with similar results that you're having (occasional CEL, etc.), but drives fine, for an absurd amount of miles. >60 or 80k if I remember correctly.
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Old Jul 28, 2018 | 02:04 AM
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The timing chain is hardened steel and is eating away at the gear on V8 engines and balance shaft on V6’s.

It is is a matter of time. The gears are not hardened.
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Old Jan 27, 2019 | 08:25 PM
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144k...Still going.
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Old Jan 30, 2019 | 05:41 AM
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Originally Posted by Kushp14
So it seems the CEL is only coming on when the tank is below half. Once I refill to max, it goes away...How is this related to the balance shaft?
mine 2006 do the same, fill up the gas and CEL went off. p0016 and p0017 code.
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Old Jan 30, 2019 | 10:12 AM
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Originally Posted by Henry Le
mine 2006 do the same, fill up the gas and CEL went off. p0016 and p0017 code.
How long(miles) has this been occurring?
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Old Jan 30, 2019 | 01:30 PM
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Originally Posted by Kushp14


How long(miles) has this been occurring?
just recently, about 300 miles ago, my car sitting at 121k right now.
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