1979-1991 Mercedes-Benz R107 + W126 - Auto-Trend Repairs and Service Information Forums

SELLC · SELLC

Been seeing more and more of these older Mercedes both 4,6 and 8 cylinders with blowby problems. I had a very nice 560 SEC come in the other day that was very bad. It was so bad in fact that when you took off the oil fill cap you could acually see and hear the blowby. The crank case was so pressurized that press...

Rastus · Rastus

Hello people, It seems appropriate on a forum like this to at least post the factory perfomance data of the MB engines that most of us own, have owned, or will own. There's lots to consider when buying your next car or even swapping engine combinations etc, and so knowing the basic performance data coul...

SELLC · SELLC

Well the very first for me anyway. While I have purchased a great deal of brand new OE and aftermarket goodies I have been able to get away with only using using left over used parts for the past ten years. Outside of oil and gasoline I have for the most part been able to avoid having to buy any "New&qu...

SELLC · SELLC

I thought I would let my would be Mercedes Techs in training.... Er.... I mean Mercedes Owners know that we have found that depending on which pump fails you can still see a litte over 1 liter of fuel in 40 seconds. Thats right folks... If you pull your main pressure line (The one that goes into the fuel dis...

SELLC · SELLC

IT'S BACK! Yeah that black on black Mercedes 420 is back. You all know it from the thread posted in here about how a local stereo shop installed a stereo and drilled holes in the gas tank. Well I sent it down the road, and here it is back again. Link to original thread- http://autotrend.activeboard.com/...

SEL420 · SEL420

Boys and girls... I've come to the conclusion that one needs a little more than just instructions from the internet to tear down the engine expecting to simply pull the heads off for cleaning/resurfacing..... and to put engine back together, expecting to hear that engine purr again?!?! Now I have p...

SEL420 · SEL420

http://www.everythingbenz.com/z/epc-mercedes-parts-info-diagrams

SEL420 · SEL420

Let me start by saying, I am not mechanically inclined. However, I do know how to follow instructions! I've come this far by reading posts/blogs/ideas from the internet....as a book by Haynes / Chilton does not seem to exist?!?!? I have a second vehicle, so I have decided to tear apart this 420 (20...

Administrator · Administrator

Having been thru near 15 Mercedes-Benz W126 sedans I have seen some of the most common rust areas on a Mercedes. There are several areas on a Mercedes that are very prone to rust. Knowing where these areas are can help you to prevent it from happening. Some of the areas are well known, others are not. For t...

SELLC · SELLC

GEEZUS... In Michigan your plate renewal fee's (Vehicle Registration) is due on your Birthday. Each and every year I find myself bitching and moaning about the cost to renew plates on my 1991 Mercedes Benz 560 SEL. The cost per year to renew plates on a 20+ year old Mercedes 560 is $300! They use the orig...

SELLC · SELLC

While it seems hard to compare the W126 to the R107 Mercedes I feel there are some things that many over look and sometimes wonder why the R107's draw so much more money than the W126. The sporty R107 is by rights a more expensive vehicle. It was when new, and naturally it will be as it gets into the collecto...

Albe · Albe

Hi I am new to this site and hope you can all help me with some good idea's.My name is Allan (Albe) and I am from Brisbane Australia, I have two Mercedes one W116 280SEL 1978 and a W126SEL rusty parts car .What I am doing is taking the m117 and putting it in the W116 .First I need to recondition the motor and tha...

SELLC · SELLC

Been seeing more and more reports, both online and first hand; of complaints with regards to URO brands rubber hose/tubing for the V8 W126 Mercedes. These rumors are not just chatter, it's a FACT that the URO brand injection tubing does not hold up and in many cases will crack just trying to install it!...

gerryvz · gerryvz

... a freshly washed C126 !!! Beats an ol' Saturn any day of the week :D

Administrator · Administrator

MERCEDES-BENZ W126 420 and 560 DIFFERENTIAL INFORMATION- There seems to be a lot of different opinions about the rear differential that is found in the W126 Mercedes Benz. The first MYTH out there is that all 560's come equipped with LSD. The term LSD stands for Limited Slip Differential. This term i...

SELLC · SELLC

I thought that I would take the time to write a little peice on the value of the Mercedes-Benz W126 Sedan after reading time after time the spoiled little bratts on BenzWorld.org claim that they will never be worth anything. Within the next 10 years as these vehicles get smashed, stripped and start shr...

gerryvz · gerryvz

Retrofit FROM previously retrofitted R134a BACK to the much better R-12 (the car was retrofitted to 134a when I bought it 10 years ago; worked like shit here in Texas with 134a). New Denso compressor, expansion valve (PITA to get at), drier, high and low A/C switches, and about 2.5 pounds of Freon wit...

oneklassy1 · oneklassy1

Hello again everyone! We took our 380 for a short cruise and for the first time, I noticed that the heater blower motor has started the sporadic whining noise. Sounds like the bearings are going out or dry. I've heard that the motor can't be repaired so replacing it is in order, before it goes out. The...

SELLC · SELLC

Well since not too many people get into re-building their SLS pumps I thought you might find interest in what actually goes on inside there. Most of the time when people run out of hydo-fluid for thier suspensions this pump burns up due to the lack of oiling. As you can see this unit runs off the timing c...

SELLC · SELLC

Well as everyone knows Grafdesign and family gave us a 1991 Mercedes-Benz 560 SEC after that tragic night when he was involved in a hit and run. Since that time Satish of Motorwerks transplanted the original euro motor into Graf's 560 SEL, while picking parts from the poor Jap/Euro coupe in true vultu...

Stellar007 · Stellar007

Specializing in the W126 Mercedes-Benz is somewhat a lifestyle when it becomes a business. In the many years we have been working with these vehicles we meet a lot of the serious minded enthusiast. Upon turning someone on to the Mercedes Benz I was shocked to get an order requesting a cloned version of...

SELLC · SELLC

Hello, Working with Mercedes and driving one every day I come across many diffrent problems. One of the problems I am going to talk about in this thread has to do with the Heater and AC. Upon driving my Mercedes with the heat or AC working I would notice every once and awhile an almost Toxic fume emit from t...

Stellar007 · Stellar007

Yeah so I go out to the parts Benz to grab some goodies and low and behold what do I find? Some punk had torn the hood ornament off our 190E parts car. Then to make it worse they pried off the back emblem from the trunk too! If what goes around comes around I should now be even. fugg'n punk kids! I feel so violate...

SELLC · SELLC

Recently I been working with an SEC that had the key lost. I was going to pop the column before I noticed three little letters cast into the housing. Them three letters just happend to be AMG. I checked my stock of 8 SEL columns and none of them had this AMG cast into the housing. So my question is this, Did AL...

SELLC · SELLC

I don't think I have ever seen a movie that had more W126's in it! Must have been about five W126 sedans, plus one Smoke Silver SEC! Only problem was it's based on Uday Hussain's life! But damn! The cars and the women are hot in that movie!

SELLC · SELLC

It is amazing just how well made the 10 speaker sound system is. Many times when we have a parts vehicle the speakers are the first things to go. While it is true the Becker Grand Prix stereo is less than flawless no one can deny that the speakers are another story. Given the Becker was produced in Mexico th...

Dig41 · Dig41

G'day to all fellow W126 lovers. I have owned my 300se for about 6 weeks now and all seems well. It is winter here at the moment so cool but summer not far away. I have noticed that the temp gauge starts to creep up when stuck at the lights. What I wanted to know (and I have searched Google) is how the two fans in...

SELLC · SELLC

Here is a look at a 420 under WOT. http://www.autotrend.us/420video.htm

SELLC · SELLC

The changing of the engine oil and filter is something that everyone will have to deal with on a 3 month or 3,000 mile bassis if you plan to keep your Mercedes in top order. Having done many oil changes using many diffrent kinds of oils and filters I have some information that may help others when the time c...

SELLC · SELLC

Hello everyone and welcome to the W126 photo thread! Post here some photos of your Mercedes, or link in photos of other cool W126's you have seen. I have owned many Mercedes however the one color that seems to have grown on me is #702 Smoke Silver. At first I didnt like the color too much, however over time...

Topic		Started By	Replies	Views	Last Post
	Mercedes-Benz M117 - Excessive BLOW-BY and oil consumption. (Preview) Been seeing more and more of these older Mercedes both 4,6 and 8 cylinders with blowby problems. I had a very nice 560 SEC come in the other day that was very bad. It was so bad in fact that when you took off the oil fill cap you could acually see and hear the blowby. The crank case was so pressurized that press...	SELLC	2	3292	08:56 PM May 27, 2013 by SELLC
	The official MB Factory Performance Specifications for Engines M110, M116 & M117 etc (Preview) Hello people, It seems appropriate on a forum like this to at least post the factory perfomance data of the MB engines that most of us own, have owned, or will own. There's lots to consider when buying your next car or even swapping engine combinations etc, and so knowing the basic performance data coul...	Rastus	0	8642	11:34 PM May 24, 2013 by Rastus
	Purchased my very first new W126 part today! (Preview) Well the very first for me anyway. While I have purchased a great deal of brand new OE and aftermarket goodies I have been able to get away with only using using left over used parts for the past ten years. Outside of oil and gasoline I have for the most part been able to avoid having to buy any "New&qu...	SELLC	3	1777	01:30 PM May 17, 2013 by Rastus
	Mercedes-Benz W126 560 Fuel Pump Volume Test - PASS... Pressure Test - FAIL! (Preview) I thought I would let my would be Mercedes Techs in training.... Er.... I mean Mercedes Owners know that we have found that depending on which pump fails you can still see a litte over 1 liter of fuel in 40 seconds. Thats right folks... If you pull your main pressure line (The one that goes into the fuel dis...	SELLC	10	14214	10:08 AM May 17, 2013 by Rastus
	The Draw from Hell! 1986 Mercedes-Benz 420 SEL (Preview) IT'S BACK! Yeah that black on black Mercedes 420 is back. You all know it from the thread posted in here about how a local stereo shop installed a stereo and drilled holes in the gas tank. Well I sent it down the road, and here it is back again. Link to original thread- http://autotrend.activeboard.com/...	SELLC	8	5556	04:35 AM May 13, 2013 by Rastus
	420 SEL: OVER MY HEAD!!! (Preview) Boys and girls... I've come to the conclusion that one needs a little more than just instructions from the internet to tear down the engine expecting to simply pull the heads off for cleaning/resurfacing..... and to put engine back together, expecting to hear that engine purr again?!?! Now I have p...	SEL420	1	1256	02:08 AM Apr 13, 2013 by SELLC
	Good diagrams which could be useful (Preview) http://www.everythingbenz.com/z/epc-mercedes-parts-info-diagrams	SEL420	0	1002	06:02 PM Mar 26, 2013 by SEL420
	91 420 SEL.... the new guy needing some help!! (Preview) Let me start by saying, I am not mechanically inclined. However, I do know how to follow instructions! I've come this far by reading posts/blogs/ideas from the internet....as a book by Haynes / Chilton does not seem to exist?!?!? I have a second vehicle, so I have decided to tear apart this 420 (20...	SEL420	5	1294	11:51 PM Mar 2, 2013 by SELLC
	W126 Mercedes-Benz SOFT SPOTS aka most common RUST AREAS (Preview) Having been thru near 15 Mercedes-Benz W126 sedans I have seen some of the most common rust areas on a Mercedes. There are several areas on a Mercedes that are very prone to rust. Knowing where these areas are can help you to prevent it from happening. Some of the areas are well known, others are not. For t...	Administrator	9	9633	08:39 AM Feb 22, 2013 by cartenz
	Registration Fee's in Michigan - aka Plates, Tabs on 1991 Mercedes Benz 560 SEL (Preview) GEEZUS... In Michigan your plate renewal fee's (Vehicle Registration) is due on your Birthday. Each and every year I find myself bitching and moaning about the cost to renew plates on my 1991 Mercedes Benz 560 SEL. The cost per year to renew plates on a 20+ year old Mercedes 560 is $300! They use the orig...	SELLC	4	1808	09:45 AM Jan 27, 2013 by Rastus
	W126 VS. R107 (Preview) While it seems hard to compare the W126 to the R107 Mercedes I feel there are some things that many over look and sometimes wonder why the R107's draw so much more money than the W126. The sporty R107 is by rights a more expensive vehicle. It was when new, and naturally it will be as it gets into the collecto...	SELLC	8	10421	07:13 AM Jan 27, 2013 by Rastus
	560 m117 rebuild (help) (Preview) Hi I am new to this site and hope you can all help me with some good idea's.My name is Allan (Albe) and I am from Brisbane Australia, I have two Mercedes one W116 280SEL 1978 and a W126SEL rusty parts car .What I am doing is taking the m117 and putting it in the W116 .First I need to recondition the motor and tha...	Albe	9	2550	05:30 PM Jan 19, 2013 by Rastus
	URO Aftermarket Mercedes-Benz parts... The GOOD and the BAD. (Preview) Been seeing more and more reports, both online and first hand; of complaints with regards to URO brands rubber hose/tubing for the V8 W126 Mercedes. These rumors are not just chatter, it's a FACT that the URO brand injection tubing does not hold up and in many cases will crack just trying to install it!...	SELLC	0	1332	04:09 AM Jan 16, 2013 by SELLC
	Happiness is... (Preview) ... a freshly washed C126 !!! Beats an ol' Saturn any day of the week :D	gerryvz	9	1460	12:40 AM Nov 28, 2012 by SELLC
	De-Myth the LSD 420/560 Rear Differential + Axle Ratio and Photos (Preview) MERCEDES-BENZ W126 420 and 560 DIFFERENTIAL INFORMATION- There seems to be a lot of different opinions about the rear differential that is found in the W126 Mercedes Benz. The first MYTH out there is that all 560's come equipped with LSD. The term LSD stands for Limited Slip Differential. This term i...	Administrator	21	20433	04:30 PM Nov 20, 2012 by Rastus
	Value of the W126 Sedan in years to come. (Preview) I thought that I would take the time to write a little peice on the value of the Mercedes-Benz W126 Sedan after reading time after time the spoiled little bratts on BenzWorld.org claim that they will never be worth anything. Within the next 10 years as these vehicles get smashed, stripped and start shr...	SELLC	8	3831	03:59 PM Nov 20, 2012 by Rastus
	Recent 560SEC work (Preview) Retrofit FROM previously retrofitted R134a BACK to the much better R-12 (the car was retrofitted to 134a when I bought it 10 years ago; worked like shit here in Texas with 134a). New Denso compressor, expansion valve (PITA to get at), drier, high and low A/C switches, and about 2.5 pounds of Freon wit...	gerryvz	6	2282	03:26 PM Nov 20, 2012 by Rastus
	Replacing Heater Blower Motor - 1983 380 SEL (Preview) Hello again everyone! We took our 380 for a short cruise and for the first time, I noticed that the heater blower motor has started the sporadic whining noise. Sounds like the bearings are going out or dry. I've heard that the motor can't be repaired so replacing it is in order, before it goes out. The...	oneklassy1	4	4370	09:23 PM Jun 29, 2012 by jenwhite
	Ever wondered what the inside of an SLS Suspension pump looks like? (Preview) Well since not too many people get into re-building their SLS pumps I thought you might find interest in what actually goes on inside there. Most of the time when people run out of hydo-fluid for thier suspensions this pump burns up due to the lack of oiling. As you can see this unit runs off the timing c...	SELLC	2	1894	08:17 AM Jun 1, 2012 by gerryvz
	SILVER DRAGON 1991 Mercedes-Benz SEC EURO Project Race-Car (Preview) Well as everyone knows Grafdesign and family gave us a 1991 Mercedes-Benz 560 SEC after that tragic night when he was involved in a hit and run. Since that time Satish of Motorwerks transplanted the original euro motor into Graf's 560 SEL, while picking parts from the poor Jap/Euro coupe in true vultu...	SELLC	14	5012	06:34 AM May 5, 2012 by SELLC
	Operation PANZR 420 SEL clone - Nomada (Preview) Specializing in the W126 Mercedes-Benz is somewhat a lifestyle when it becomes a business. In the many years we have been working with these vehicles we meet a lot of the serious minded enthusiast. Upon turning someone on to the Mercedes Benz I was shocked to get an order requesting a cloned version of...	Stellar007	13	6052	04:04 AM May 3, 2012 by SELLC
	Nasty - Toxic smell coming from vents while blower motor is on. (Preview) Hello, Working with Mercedes and driving one every day I come across many diffrent problems. One of the problems I am going to talk about in this thread has to do with the Heater and AC. Upon driving my Mercedes with the heat or AC working I would notice every once and awhile an almost Toxic fume emit from t...	SELLC	2	2794	04:31 AM May 2, 2012 by stoma
	Some punk stole the hood ornament off one of my Mercedes! (Preview) Yeah so I go out to the parts Benz to grab some goodies and low and behold what do I find? Some punk had torn the hood ornament off our 190E parts car. Then to make it worse they pried off the back emblem from the trunk too! If what goes around comes around I should now be even. fugg'n punk kids! I feel so violate...	Stellar007	6	2810	08:01 AM Apr 26, 2012 by stoma
	Did all SEC's come with AMG Steering Columns? (Preview) Recently I been working with an SEC that had the key lost. I was going to pop the column before I noticed three little letters cast into the housing. Them three letters just happend to be AMG. I checked my stock of 8 SEL columns and none of them had this AMG cast into the housing. So my question is this, Did AL...	SELLC	4	2200	07:56 AM Apr 26, 2012 by stoma
	The Devils Double - Movie with countless W126's! (Preview) I don't think I have ever seen a movie that had more W126's in it! Must have been about five W126 sedans, plus one Smoke Silver SEC! Only problem was it's based on Uday Hussain's life! But damn! The cars and the women are hot in that movie!	SELLC	0	1157	08:31 AM Apr 24, 2012 by SELLC
	Mercedes-Benz Premium 10 Speaker Sound System - Becker Grand Prix (Preview) It is amazing just how well made the 10 speaker sound system is. Many times when we have a parts vehicle the speakers are the first things to go. While it is true the Becker Grand Prix stereo is less than flawless no one can deny that the speakers are another story. Given the Becker was produced in Mexico th...	SELLC	11	7494	03:14 PM Dec 24, 2011 by stoma
	W126 300SE 1991 (Preview) G'day to all fellow W126 lovers. I have owned my 300se for about 6 weeks now and all seems well. It is winter here at the moment so cool but summer not far away. I have noticed that the temp gauge starts to creep up when stuck at the lights. What I wanted to know (and I have searched Google) is how the two fans in...	Dig41	5	2044	06:18 PM Nov 14, 2011 by SELLC
	420 Test Drive (Preview) Here is a look at a 420 under WOT. http://www.autotrend.us/420video.htm	SELLC	3	1772	04:49 PM Nov 13, 2011 by SELLC
	Oil Change V8 Mercedes-Benz 420 and 560 Coupe/Sedan + Filter Selection (Preview) The changing of the engine oil and filter is something that everyone will have to deal with on a 3 month or 3,000 mile bassis if you plan to keep your Mercedes in top order. Having done many oil changes using many diffrent kinds of oils and filters I have some information that may help others when the time c...	SELLC	5	6005	12:07 PM Nov 12, 2011 by SELLC
	Mercedes-Benz W126 Photo/Picture Thread! Lets see your rides! (Preview) Hello everyone and welcome to the W126 photo thread! Post here some photos of your Mercedes, or link in photos of other cool W126's you have seen. I have owned many Mercedes however the one color that seems to have grown on me is #702 Smoke Silver. At first I didnt like the color too much, however over time...	SELLC	5	8615	02:18 AM Oct 9, 2011 by oneklassy1
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