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#1
01-27-2009, 10:20 PM
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W124 Head Gasket Leak,,, Effects?
Aside from engine OIL leaking all over the place, what other issues can I expect when I have a Head Gasket leaking (front & back) on an M103 Engine?
- oil leaking... - compression issue? - other performance issues? REPAIR COSTS: $2300? (remove/machine/replace gasket/all labor) - reasonable? thanks in advance! Kieran-
__________________
Kieran K Jersey Shore 1988 300CE (for sale, AUG. 2013) 1995 SL320 (88K) - terrific car 1983 300CD -1993 400E (sold w/74k) -1988 560SEL (sold w/49k) - 1995 S420 (sold w/75k) - 2005 E320 CDI (sold) - 2007 E350 4M (sold) - 1984 300D, sold w/305k, CA car, zero rust & over $12k invested - 2001 E55 AMG (sold w/81k), I really miss it. - 1982 300CD (sold, all stripped down) 
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#2
01-27-2009, 10:35 PM
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That price seems a bit high. Don't have the shop manual, but I can't imagine it being too much over a grand....
-tp
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#3
01-27-2009, 11:08 PM
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I have been quoted $1300 before for the head gasket. Machine shop to get it skimmed costs about $200 so you are overpaying by about $700 once you factor in parts and all. I'd ask around somewhere else if you don't want to do it yourself.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#4
01-27-2009, 11:08 PM
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how often do M103 head gaskets go bad?
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#5
01-27-2009, 11:22 PM
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$200 is alot to surface a head most shops are 65-85
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#6
01-27-2009, 11:35 PM
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Quote:
Mine was done for $1000 less (M104 engine) than the OP's quote a few months ago. If the car is eating coolant along with the oil leak, then it is doing damage to your engine.
__________________
1985 500SL Euro w/ AMG bits 130k  1984 300SD Turbodiesel 192k  1980 240D Stick China 188k  2001 CLK55 AMG 101k  2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!! 
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#7
01-28-2009, 12:32 AM
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Quote:
They always eventually fail due to the different expansion rates, plus the valve guide wear of the M103. Seems awfully high, but I haven't a clue what the labor per hour the shop is charging nor how many hours they're asking for... hell, it could be their machine shop that's adding the extra costs. I'd take a three day weekend and do it.
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I'm not a doctor, but I'll have a look.  '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]
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#8
01-28-2009, 07:49 AM
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$1300 to $1500 was what I was quoted recently for M104 at independents. Dealer wanted $2100.
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John Gillespie 1988 560sec - 192k miles 2006 CLK500 - 40K miles 1995 E300 - 202k miles
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#9
01-28-2009, 09:07 AM
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Quote:
**** So if I am not experiencing Coolant leaking or eating then the head gasket leak is NOT causing damage to the engine?
__________________
Kieran K Jersey Shore 1988 300CE (for sale, AUG. 2013) 1995 SL320 (88K) - terrific car 1983 300CD -1993 400E (sold w/74k) -1988 560SEL (sold w/49k) - 1995 S420 (sold w/75k) - 2005 E320 CDI (sold) - 2007 E350 4M (sold) - 1984 300D, sold w/305k, CA car, zero rust & over $12k invested - 2001 E55 AMG (sold w/81k), I really miss it. - 1982 300CD (sold, all stripped down)
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#10
01-28-2009, 08:19 PM
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I got a call from my indy today, I spoke with him a few months back about replacing the headgasket in my 300E . He wanted to let me know that they were offering 10% discount on parts and labor during the month of February. I guess they dont have much work
He quoted me the following back in Nov 08: R & R Cyl Head gasket , replace front upper timming cover reseal $410.00 parts $1335.00 labor $174500 sub-total R & R Cyl Head Gasket Replacement , front upper timming cover reseal, new valve stem seals $450.00 parts $1513.00 labor $1963.00 sub-total R & R Cyl Head Gasket Replacement , new valve guides, valve seals front upper timming cover reseal and Cyl Head Refurbishing $575.00 parts $1335.00 labor $450.00 machine Shop $2360.00 sub-total The following new parts are included on all the above: Coolant Breather hoses Spark plugs/wires Oil Valves will be cleaned ( replaced if necessary) The last estimate is close to what you were quoted, I wonder if we can get both HG replaced for the price of one???????  Good Luck!!!!
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GC 1987 300E 104K 1984 300CD 112k R.I.P
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#13
01-28-2009, 10:20 PM
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Check the block gallery freeze plug for leaks. It is located along on the block underneath the exhaust manifold at the end. It is round and requires a 19mm socket IIRC.
It is a common thing to leak and when it does -- it generally makes a hell of a mess.
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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#14
01-28-2009, 10:21 PM
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Quote:
Thank you for the excellent information; this really helps me out as now I can match/reference what my Indy is telling me here. He wants to completely re "dress" the head/valves etc. He would also replace the crank seal. Right now I just have oil leaking from the valve cover & a "slow trickle" also leaking from the front of head gasket. No coolant reported in the oil. thanks again, Kieran- thanks again
__________________
Kieran K Jersey Shore 1988 300CE (for sale, AUG. 2013) 1995 SL320 (88K) - terrific car 1983 300CD -1993 400E (sold w/74k) -1988 560SEL (sold w/49k) - 1995 S420 (sold w/75k) - 2005 E320 CDI (sold) - 2007 E350 4M (sold) - 1984 300D, sold w/305k, CA car, zero rust & over $12k invested - 2001 E55 AMG (sold w/81k), I really miss it. - 1982 300CD (sold, all stripped down)
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#15
01-28-2009, 10:24 PM
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Quote:
__________________
2016 Monsoon Gray Audi Allroad - 21k 2008 Black Mercedes E350 4Matic Sport - 131k 2014 Jeep Wranger Unlimited Sahara - 62k 2003 Gray Mercedes ML350 - 122k
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