C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Cylinder Head Gasket Replacement?!!

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Old Nov 4, 2009 | 01:19 PM
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Cylinder Head Gasket Replacement?!!

As you guys might know, i have the 05 C230K on very low mileage, and last friday I got two dashboard lights that went on simultaneously at the same time: one was oil sensor malfunction, and the other was coolant level check. I was like ok, maybe its just some computer error, or that my coolant was low. So I took it in to the garage where I worked over summer to get my oil change and to have them reset the light, but then I found out that I have coolant leaking into my engine as they were draining my oil!?!

As it turned out, they think I need to replace my cylinder head gasket, so I went ahead and did some research over here, and I think i do, and its soms **** about leaking in the 4th cylinder...FML cuz i know its an expensive and long job. plus I drove the car with the light on for far away places over the weekend, so hopefully the bearing and bushings arent f'ed as well


any of guys have experience with the 271 engines with this type of job or why it's happening on our 203's?
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Old Nov 4, 2009 | 04:14 PM
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Originally Posted by rocafel1a
As you guys might know, i have the 05 C230K on very low mileage, and last friday I got two dashboard lights that went on simultaneously at the same time: one was oil sensor malfunction, and the other was coolant level check. I was like ok, maybe its just some computer error, or that my coolant was low. So I took it in to the garage where I worked over summer to get my oil change and to have them reset the light, but then I found out that I have coolant leaking into my engine as they were draining my oil!?!

As it turned out, they think I need to replace my cylinder head gasket, so I went ahead and did some research over here, and I think i do, and its soms **** about leaking in the 4th cylinder...FML cuz i know its an expensive and long job. plus I drove the car with the light on for far away places over the weekend, so hopefully the bearing and bushings arent f'ed as well


any of guys have experience with the 271 engines with this type of job or why it's happening on our 203's?

There's a guy on benzworld who replaced the valves on his 271.
Take a look over there. Good pics. DIY.
The thing about leaking on the 4th cylinder was probably related to the M111 like what I have, 2.3L.
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Old Nov 4, 2009 | 05:24 PM
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matt, if you need good shop recommendation let me know. i can give you the shop info where I had the repair last time.
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Old Nov 4, 2009 | 05:30 PM
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i would do a compression test before jumping to the conclusion its a head gasket.
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Old Nov 4, 2009 | 07:30 PM
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Originally Posted by FrankW
matt, if you need good shop recommendation let me know. i can give you the shop info where I had the repair last time.
hey frank, can you pm me the address and contact info?

i just took it to the garage i worked for over summer so hopefully i can get a quote sometime at the end of the week..thanks man
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Old Nov 4, 2009 | 07:41 PM
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Originally Posted by C230 Sport Coup
There's a guy on benzworld who replaced the valves on his 271.
Take a look over there. Good pics. DIY.
The thing about leaking on the 4th cylinder was probably related to the M111 like what I have, 2.3L.

actually, my co-worker said its more common on the 111 2.3L engines...

sigh its probably going to be an expensive job
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Old Nov 4, 2009 | 10:57 PM
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I've read a lot on this forum during my tenure here, and I've never read about a head gasket failure on a M271 engine. I've heard about cylinder head replacements on the M271 because of a valve problem, but supposedly that was resolved by the time the 2005s hit production (this isn't confirmed).

I would definitely get a second opinion, though those errors make sense. Have you got the pigtail adapter wires installed on your cam sensors? Oil leaking from there can cause all sorts of weird errors in the OBD system.

How many miles do you have?
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Old Nov 5, 2009 | 03:22 AM
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Originally Posted by LILBENZ230
I've read a lot on this forum during my tenure here, and I've never read about a head gasket failure on a M271 engine. I've heard about cylinder head replacements on the M271 because of a valve problem, but supposedly that was resolved by the time the 2005s hit production (this isn't confirmed).

I would definitely get a second opinion, though those errors make sense. Have you got the pigtail adapter wires installed on your cam sensors? Oil leaking from there can cause all sorts of weird errors in the OBD system.

How many miles do you have?
yeah exactly, its rare to see it on our 271's, so when I heard about it, i was shocked. since it was sitting in the garage for the longest time when it was first bought, its got like 10k miles, no joke. maybe tough luck?

funny thing was, i drove the car long distance over the weekend with both lights on, but the car never died on me considering the fact that when i brought it in to the garage, there was no coolant left in the reservoir, and the meter gauge on the dashboard seemed normal. no leaks on the floor, no leaks in the hoses, but i didnt get a chance to see if there was white smoke coming out from the exhaust when revving...

i havent heard from the guys yet...if they cant diagnose it, ima take it to another place that frank recommended.
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Old Nov 5, 2009 | 04:14 AM
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Very, Very rare to see a M271 head gasket fail unless severely overheated. Check the diagnosis.
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Old Nov 5, 2009 | 05:34 AM
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Ouch 10,000 miles? It's been sitting for how long?

I just don't trust a car rarely driven. This furthers that.
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Old Nov 5, 2009 | 11:43 AM
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Originally Posted by LILBENZ230
Ouch 10,000 miles? It's been sitting for how long?

I just don't trust a car rarely driven. This furthers that.
well, it wasnt until this last year that i started driving it more...the first 2-3 years it would be sitting in the garage untouched...but since 07, its been a commuter

im hoping its a from wear and tear, or just i was unlucky to have gasket leak
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Old Nov 5, 2009 | 11:51 AM
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Originally Posted by rocafel1a
I got two dashboard lights that went on simultaneously at the same time
You work for the department of redundancy department, don't you?

+1 on getting a compression check done.
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Old Nov 5, 2009 | 02:59 PM
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Originally Posted by SickSpeedMonte
You work for the department of redundancy department, don't you?

+1 on getting a compression check done.
lol good time to crack a joke LOL yeah i just realized that

im giving my guys a call today and see what they say...
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Old Nov 5, 2009 | 03:15 PM
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Cars aren't made to sit. Seals deteriorate.
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Old Nov 5, 2009 | 04:05 PM
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Originally Posted by LILBENZ230
Cars aren't made to sit. Seals deteriorate.
apparently so...its goin to be pricey lesson haha
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Old Nov 5, 2009 | 06:24 PM
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i still have doubts on the head gasket. My integra was 14yrs old on the original head gasket. At 171k..the head gasket was just starting to go.
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Old Nov 5, 2009 | 06:35 PM
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Originally Posted by TemjinX2
i still have doubts on the head gasket. My integra was 14yrs old on the original head gasket. At 171k..the head gasket was just starting to go.

yeah, hey sorry to be dummie and for being too lazy to search, but what is a compression test?
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Old Nov 5, 2009 | 06:39 PM
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Originally Posted by rocafel1a
yeah, hey sorry to be dummie and for being too lazy to search, but what is a compression test?
basically they attach a device where the spark plugs go and measure the psi in each cylinder. Optimally you want the same psi across the board. That means you have a healthy engine.

If you have a leaky head gasket you'll get lower psi on one of the cylinders since air is escaping in the cracks of the head gasket or if your psi rating is too low, you have some problems.

You can rent one for free at autozone and do it yourself if you wanted too.
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Old Nov 5, 2009 | 06:40 PM
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you're not the only one man. that happened to my C230 a year and a half or so ago. when the car had about 60k miles. the dealer did the repair for me and I paid about $400.
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Old Nov 5, 2009 | 10:26 PM
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Originally Posted by TemjinX2
basically they attach a device where the spark plugs go and measure the psi in each cylinder. Optimally you want the same psi across the board. That means you have a healthy engine.

If you have a leaky head gasket you'll get lower psi on one of the cylinders since air is escaping in the cracks of the head gasket or if your psi rating is too low, you have some problems.

You can rent one for free at autozone and do it yourself if you wanted too.
hmm ill make sure to mention it to my boss when i get a chance to talk to him through the phone tomorw

thanks man
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Old Nov 5, 2009 | 10:27 PM
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Originally Posted by nlpamg
you're not the only one man. that happened to my C230 a year and a half or so ago. when the car had about 60k miles. the dealer did the repair for me and I paid about $400.
did you have extended warranty, or were you just under the regular warranty when it happened? i dont know if $400 is expensive or cheap though...
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Old Nov 6, 2009 | 04:04 AM
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Oh wow.. so Phil's 05 C230 has had this happen, too? That's interesting.. hope it's not something that will start happening to more of these cars as they get older.
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Old Nov 6, 2009 | 07:00 AM
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Originally Posted by rocafel1a
lol good time to crack a joke LOL yeah i just realized that

im giving my guys a call today and see what they say...

Just tryin to cheer you up a little bit man.

$400 is probably a little less than I would expect to pay someone else to do this on a Benz... there seems to be a Mercedes tax on everything associated with these cars.

Personally, I would take a crack at this myself and just take my time and be very thorough. I have a good bit of experience with working on cars though.
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Old Nov 6, 2009 | 01:34 PM
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Originally Posted by rocafel1a
did you have extended warranty, or were you just under the regular warranty when it happened? i dont know if $400 is expensive or cheap though...
I had no warranty coverage whatsoever. I just paid out of pocket. I think I was having a Service B done as well, so they cut me a deal.
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Old Nov 6, 2009 | 05:33 PM
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Originally Posted by SickSpeedMonte
Just tryin to cheer you up a little bit man.

$400 is probably a little less than I would expect to pay someone else to do this on a Benz... there seems to be a Mercedes tax on everything associated with these cars.

Personally, I would take a crack at this myself and just take my time and be very thorough. I have a good bit of experience with working on cars though.
yeah if i had the time and the right tools in hand, it would be a DIY and i would follow the forum thread over here.. but i don't know too much about the front end and stuff like that

im surprised at $400 , hope thats how much i need to fork in
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