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

SELLC · SELLC

Well I have long since abandon the factory Mexican made Becker Grand Prix stereo's that came in our Mercedes. While the Becker was a real nice crisp sound, it lacked the power to really jam most modern music. About the only thing worth a damn in my opinion is the factory speakers which were made in W. Ger...

SELLC · SELLC

Have a look at a crash test done by an independent company that involves a w126 frontal collision with several other vehicles. http://fifthgear.motorwaypileup.patrz.pl/ Its impressive however they should have then run another large car @ 70 into the back of the Mercedes so we could see what h...

SELLC · Anonymous

DOES ANYONE KNOW WHAT CAR I NEED TO LOOK FOR TO GET A 3.27 OR LOWER GEAR RATIO. TO SWAP OUT THE 2.47 IN MY 380 SEC. I REALLY WOULD LIKE A 3.55

SELLC · SELLC

I dont know if its just me but there seems to be an extra enjoyment in driving the Mercedes-Benz w126 chassis in the cooler/cold weather. Maybe its the fact that the climate control system keeps you just warm enough, maybe its the fact that in cold weather the windows and moonroof are normally closed so...

SELLC · SELLC

I have recently fixed a Mercedes-Benz 560 SEL that was sagging slightly in the rear by replacing the sway bar links. The sway bar links in the rear often times wear out and sometimes even seperate. This causes the rear end to start sitting lower than usual. This problem is exclusive to the 560 models wit...

SELLC · SELLC

For anyone whom may be having a noise coming from the rear of their W126 Mercedes Benz when hitting bumps you might want to inspect your rear sway bar links. What I have found is that many times when people complain of a slight noise coming from the rear when hitting bumps is usually the result of worn rear...

SELLC · SELLC

Well if pink is your thing you might want to check out this Pink 560 SEL for sale on craigslist Detroit. http://detroit.craigslist.org/cto/1137956993.html Exotic Paint 230k Highway Leather Interior Power windows , locks , seats , mirrors and power moon-roof Needs some minor work done to it. ( TLC...

SELLC · SELLC

Got this Mercedes with a problem in the recirculation switch circuit. Seems this little button is tied into a whole lot. In pulling the wiring diagram one will realize the far reaching roots of this little switch. The red light will come on and off, and also cause some clicking now and again. We origina...

stoma · Anonymous

HOW MANY 1986-1991 560SEL WERE SOLD IN THE USA

mick · mick

the car runs great but sometimes it will leave us stuck -the next day it will start up an run as if nothing happen. mechs say they cant get it to do it-love the car but worry about taking it out - anyone had this problem-- fuel filter-plugs-wires all have been changed

SELLC · donaldgs

Any suggestions on how to get the headlights on an 89 420 SEL working properly? I had a right High Beam out so I replaced the bulbs on both sides just because of the age of the car, and not knowing the history. Now I have a left low beam out, and right high beam is still out. trade light bulbs side to side no effe...

Administrator · Administrator

Something interesting to know is that on the inside of most ALL factory Mercedes Benz rims there will be a color band that encompasses the entire diameter of the rim. The color of this bad designates the width of the rim. Green = 7 inch Red = 6.5 inch You can also find the part number, as well as all of the dim...

SELLC · SELLC

Here is a video of a Mercedes Benz 560 SEL under full acceleration. http://www.autotrend.us/560benz.htm You-Tube version (It sucks because YouTube sucks) Download it and play at real speed above -- Edited by SELLC at 17:26, 2008-08-1...

SELLC · SELLC

Well interesting how these two vehicles stack u [youtube= Top Gear Mercedes Benz vs. Rolls Royce big car cha]p. -- Edited by SELLC at 08:15, 2008-08-27

SELLC · SELLC

LOW RESISTANCE TUNE-UP KIT! We have found that the lowest resistance can be had with a BOSCH SUPER PLUS 7907 however it is listed as a Yugoslavian plug WR9DC. These low resistance high output plugs will come pre-gapped at .023 however they will need to be opened up to .032 in order to get the best idle an...

SELLC · SELLC

A lot of customers whom come in do not know how to use the headlamp wipers. For this reason I am making a thread to let everyone know how they work. The wipers that clean off the headlamps are real nice on snowy nights where as build up would cover up the lamps. Its also nice to keep the bugs, salt, dust or othe...

SELLC · SELLC

I just wanted to post some photos of a front end repair that we done here at the shop. When this 1989 Mercedes-Benz 560 SEL come to us it was smashed pretty good. The core support on the passengers side was crused in, the bumper bent down and chunks missing, the hood was creased and rolled back, grill total...

Stellar007 · Stellar007

I was looking online for paint codes for the W126 when I come accross this link for Mercedes-Benz paint codes. Check it out, http://www.landiss.com/paintcodes.htm

Administrator · Administrator

Everyone knows how snotty the fuel pumps and lines get on these 20+ year out Mercedes especially here in the eastern rust belt. I unfortunatly come accross one that is about as bad as they get. The lines were so rusted and snottly that removing them was near impossible. To make things worse all of the ter...

Administrator · Administrator

As of late I have been seeing a lot of BMW's around and I cant help but wonder why anyone would settle for second best. In an effort to keep things fair let us compare the BMW 7 series with the Mercedes-Benz 500 Series. For starters the interior of the Mercedes is much more regal than that of ANY BMW 7 series....

Stellar007 · Stellar007

Our European friend "M" has also informed us about a BRAND NEW ON THE MARKET Air ride suspension kit that is being offered by an aftermarket company here in the USA. This kit looks like this- It claims to be com...

Stellar007 · Stellar007

I have been informed by one of my customers he will be performing the Plasma Speedo conversion on his Euro Mercedes. He was kind enough to share this information with us as at this time we are unaware of any kind of kit for sale in the US like it. Have a look at this item in this photo below- [img]http://imag...

ctc1952 · ctc1952

i have a 89 560sel that has a new ecm new fuel pump tune-up and most done by a dealer. but i still have a problem with rough idel and black smoke and horrible fuel milage. my economy gauge will sometime stay all the way in the red even at idel!! anybody have any ideas what i can try?

SELLC · SELLC

Here we have a look at a PROPER Mercedes-Benz 560 SEL. EST Horsepower is between 250-270 without the aid of Nitrous Oxide. http://www.autotrend.us/benz_burn.htm Notice how the rear hydraulic system tries to compensate for the squat under torque. The rear brakes are VERY strong and it took aw...

Stellar007 · Anonymous

I went to have my brakes done at a local repair shop and I got an estimate of over $1000! The brakes have been fine however they started to grind when I would come to a stop. I took the car in right away but now they are trying to sell me 4 new rotors and 4 new calipers just becuase one side has ground what they cal...

SELLC · SELLC

Today we called in to inquire about the myth of a hydro-suspension pump seal kit offered from Mercedes. Seems that both the rookie counter guy and his manager are both unaware of a hydraulic system being used for the rear suspension. Further they are trying to state as fact that there is no seal kit of...

SELLC · SELLC

Here is a photo of a 160 MPH 420 Speedo Here is a photo of a 170 MPH 560 Speedo Now you know the diffrence. Anyone else got some Speedo info?

SELLC · SELLC

Many people ask where the automatic transmission kick down switch is located and what it looks like. I have attached a photo for you. Also keep in mind there is one other micro switch that is in the path of the low gear selctor inside the shifter.

SELLC · SELLC

Hope it helps... More to come. [img]http://www.autotrend.us/bw...

SELLC · SELLC

Yeah it was a true test of Mercedes handling. Classic scenario, large trucks get off an expressway exit while revealing a parking lot of backed up traffic with only seconds to react. First was the immediate response of my foot slamming on the brake in panic. Several wheels began to squea...

Topic		Started By	Replies	Views	Last Post
	Kenwood Excelon AM/FM CD player with iPhone/iPod USB connection in W126 Mercedes (Preview) Well I have long since abandon the factory Mexican made Becker Grand Prix stereo's that came in our Mercedes. While the Becker was a real nice crisp sound, it lacked the power to really jam most modern music. About the only thing worth a damn in my opinion is the factory speakers which were made in W. Ger...	SELLC	5	4274	03:43 PM Apr 5, 2010 by SELLC
	w126 Crash Test (Preview) Have a look at a crash test done by an independent company that involves a w126 frontal collision with several other vehicles. http://fifthgear.motorwaypileup.patrz.pl/ Its impressive however they should have then run another large car @ 70 into the back of the Mercedes so we could see what h...	SELLC	4	5044	05:59 AM Mar 2, 2010 by SELLC
	GEAR RATIO SWAP (Preview) DOES ANYONE KNOW WHAT CAR I NEED TO LOOK FOR TO GET A 3.27 OR LOWER GEAR RATIO. TO SWAP OUT THE 2.47 IN MY 380 SEC. I REALLY WOULD LIKE A 3.55	Anonymous	3	2769	05:50 AM Feb 20, 2010 by SELLC
	Something about driving a 560 in the fall/winter months!? (Preview) I dont know if its just me but there seems to be an extra enjoyment in driving the Mercedes-Benz w126 chassis in the cooler/cold weather. Maybe its the fact that the climate control system keeps you just warm enough, maybe its the fact that in cold weather the windows and moonroof are normally closed so...	SELLC	8	2536	08:20 PM Sep 29, 2009 by SELLC
	Mercedes-Benz 560 SEL Sagging in the rear (Preview) I have recently fixed a Mercedes-Benz 560 SEL that was sagging slightly in the rear by replacing the sway bar links. The sway bar links in the rear often times wear out and sometimes even seperate. This causes the rear end to start sitting lower than usual. This problem is exclusive to the 560 models wit...	SELLC	1	3428	07:27 PM Sep 25, 2009 by SELLC
	Strange rattle noise coming from the rear when hitting bumps. Rear Sway Bar Links (Preview) For anyone whom may be having a noise coming from the rear of their W126 Mercedes Benz when hitting bumps you might want to inspect your rear sway bar links. What I have found is that many times when people complain of a slight noise coming from the rear when hitting bumps is usually the result of worn rear...	SELLC	2	3836	10:57 AM Sep 22, 2009 by SELLC
	Pink 560 SEL Anyone?.... Anyone?.... (Preview) Well if pink is your thing you might want to check out this Pink 560 SEL for sale on craigslist Detroit. http://detroit.craigslist.org/cto/1137956993.html Exotic Paint 230k Highway Leather Interior Power windows , locks , seats , mirrors and power moon-roof Needs some minor work done to it. ( TLC...	SELLC	7	2594	08:26 AM Aug 12, 2009 by stoma
	420 Mercedes-Benz W126 recirculation switch woes. Heater/AC System (Preview) Got this Mercedes with a problem in the recirculation switch circuit. Seems this little button is tied into a whole lot. In pulling the wiring diagram one will realize the far reaching roots of this little switch. The red light will come on and off, and also cause some clicking now and again. We origina...	SELLC	0	3010	03:07 AM Aug 8, 2009 by SELLC
	HOW MANY 560 SEL (Preview) HOW MANY 1986-1991 560SEL WERE SOLD IN THE USA	Anonymous	6	4058	10:21 PM Jul 24, 2009 by stoma
	1991 420 sel stops running (Preview) the car runs great but sometimes it will leave us stuck -the next day it will start up an run as if nothing happen. mechs say they cant get it to do it-love the car but worry about taking it out - anyone had this problem-- fuel filter-plugs-wires all have been changed	mick	1	2080	08:05 AM May 6, 2009 by SELLC
	89 420 SEL Headlights (Preview) Any suggestions on how to get the headlights on an 89 420 SEL working properly? I had a right High Beam out so I replaced the bulbs on both sides just because of the age of the car, and not knowing the history. Now I have a left low beam out, and right high beam is still out. trade light bulbs side to side no effe...	donaldgs	3	3752	04:22 PM Mar 27, 2009 by SELLC
	Mercedes-Benz Factory 15 hole rim color code for width (Preview) Something interesting to know is that on the inside of most ALL factory Mercedes Benz rims there will be a color band that encompasses the entire diameter of the rim. The color of this bad designates the width of the rim. Green = 7 inch Red = 6.5 inch You can also find the part number, as well as all of the dim...	Administrator	2	3038	02:49 AM Jan 25, 2009 by SELLC
	560 Test Drive (Preview) Here is a video of a Mercedes Benz 560 SEL under full acceleration. http://www.autotrend.us/560benz.htm You-Tube version (It sucks because YouTube sucks) Download it and play at real speed above -- Edited by SELLC at 17:26, 2008-08-1...	SELLC	13	2823	02:20 PM Sep 3, 2008 by SELLC
	Mercedes-Benz VS Rolls Royce - Top Gear Flick (Preview) Well interesting how these two vehicles stack u [youtube= Top Gear Mercedes Benz vs. Rolls Royce big car cha]p. -- Edited by SELLC at 08:15, 2008-08-27	SELLC	0	3369	07:11 AM Aug 27, 2008 by SELLC
	Tune-Up V8 Mercedes Benz Spark Plugs - Gap - Ignition Wires (Preview) LOW RESISTANCE TUNE-UP KIT! We have found that the lowest resistance can be had with a BOSCH SUPER PLUS 7907 however it is listed as a Yugoslavian plug WR9DC. These low resistance high output plugs will come pre-gapped at .023 however they will need to be opened up to .032 in order to get the best idle an...	SELLC	1	5805	04:11 PM Aug 16, 2008 by SELLC
	How to make the headlamp wipers work - Heated Washer Solvent (Preview) A lot of customers whom come in do not know how to use the headlamp wipers. For this reason I am making a thread to let everyone know how they work. The wipers that clean off the headlamps are real nice on snowy nights where as build up would cover up the lamps. Its also nice to keep the bugs, salt, dust or othe...	SELLC	0	2767	10:00 PM Jul 19, 2008 by SELLC
	1989 Mercedes-Benz 560 Front end repair - SAVED ANOTHER ONE! (Preview) I just wanted to post some photos of a front end repair that we done here at the shop. When this 1989 Mercedes-Benz 560 SEL come to us it was smashed pretty good. The core support on the passengers side was crused in, the bumper bent down and chunks missing, the hood was creased and rolled back, grill total...	SELLC	0	2325	09:38 PM Jul 19, 2008 by SELLC
	Really cool link to check paint codes and color names. (Preview) I was looking online for paint codes for the W126 when I come accross this link for Mercedes-Benz paint codes. Check it out, http://www.landiss.com/paintcodes.htm	Stellar007	3	19959	10:09 AM Jun 19, 2008 by Administrator
	Nasty Leaking Rusty fuel pump lines 420 SEL (Preview) Everyone knows how snotty the fuel pumps and lines get on these 20+ year out Mercedes especially here in the eastern rust belt. I unfortunatly come accross one that is about as bad as they get. The lines were so rusted and snottly that removing them was near impossible. To make things worse all of the ter...	Administrator	0	2143	10:54 AM May 7, 2008 by Administrator
	BMW VS. MERCEDES-BENZ (Preview) As of late I have been seeing a lot of BMW's around and I cant help but wonder why anyone would settle for second best. In an effort to keep things fair let us compare the BMW 7 series with the Mercedes-Benz 500 Series. For starters the interior of the Mercedes is much more regal than that of ANY BMW 7 series....	Administrator	1	2341	04:45 PM May 3, 2008 by Administrator
	New Air Ride suspension kit now avaliable for the W126! (Preview) Our European friend "M" has also informed us about a BRAND NEW ON THE MARKET Air ride suspension kit that is being offered by an aftermarket company here in the USA. This kit looks like this- It claims to be com...	Stellar007	0	10378	05:05 PM Dec 6, 2007 by Stellar007
	Plasma Tachos aka Glowing Hologram Cluster/Speedo Aftermarket kit (Preview) I have been informed by one of my customers he will be performing the Plasma Speedo conversion on his Euro Mercedes. He was kind enough to share this information with us as at this time we are unaware of any kind of kit for sale in the US like it. Have a look at this item in this photo below- [img]http://imag...	Stellar007	0	2871	04:50 PM Dec 6, 2007 by Stellar007
	engine problems (Preview) i have a 89 560sel that has a new ecm new fuel pump tune-up and most done by a dealer. but i still have a problem with rough idel and black smoke and horrible fuel milage. my economy gauge will sometime stay all the way in the red even at idel!! anybody have any ideas what i can try?	ctc1952	3	2614	06:05 AM Dec 3, 2007 by Stellar007
	POSI TRAC MERCEDES-BENZ 560 SEL (Preview) Here we have a look at a PROPER Mercedes-Benz 560 SEL. EST Horsepower is between 250-270 without the aid of Nitrous Oxide. http://www.autotrend.us/benz_burn.htm Notice how the rear hydraulic system tries to compensate for the squat under torque. The rear brakes are VERY strong and it took aw...	SELLC	16	4467	03:50 PM Nov 10, 2007 by Stellar007
	How much should a brake job cost on a 1990 Mercedes 420? (Preview) I went to have my brakes done at a local repair shop and I got an estimate of over $1000! The brakes have been fine however they started to grind when I would come to a stop. I took the car in right away but now they are trying to sell me 4 new rotors and 4 new calipers just becuase one side has ground what they cal...	Anonymous	4	2851	12:28 AM Oct 22, 2007 by Stellar007
	Mercedes-Benz of Novi Michigan - Parts counter unaware of SLS system (Preview) Today we called in to inquire about the myth of a hydro-suspension pump seal kit offered from Mercedes. Seems that both the rookie counter guy and his manager are both unaware of a hydraulic system being used for the rear suspension. Further they are trying to state as fact that there is no seal kit of...	SELLC	1	2578	08:18 AM Aug 7, 2007 by Administrator
	170 MPH Speedo!? (Preview) Here is a photo of a 160 MPH 420 Speedo Here is a photo of a 170 MPH 560 Speedo Now you know the diffrence. Anyone else got some Speedo info?	SELLC	0	2251	01:01 AM May 27, 2007 by SELLC
	Automatic Transmission Kick-Down switch (Preview) Many people ask where the automatic transmission kick down switch is located and what it looks like. I have attached a photo for you. Also keep in mind there is one other micro switch that is in the path of the low gear selctor inside the shifter.	SELLC	0	2749	06:02 PM Jan 6, 2007 by SELLC
	Mercedes-Benz Model Designation U.S.A (closed) (Preview) Hope it helps... More to come. [img]http://www.autotrend.us/bw...	SELLC	0	5657	05:34 PM Dec 15, 2006 by SELLC
	Almost smashed the 560 today!! (Preview) Yeah it was a true test of Mercedes handling. Classic scenario, large trucks get off an expressway exit while revealing a parking lot of backed up traffic with only seconds to react. First was the immediate response of my foot slamming on the brake in panic. Several wheels began to squea...	SELLC	0	1835	11:11 PM Oct 23, 2006 by SELLC
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