New e Owner with Troubles
Thread Starter
Newbie
Joined: Jan 2011
Posts: 9
Likes: 0
From: Reno,Nv
06 e350 4matic
New e Owner with Troubles
Hi my name is Tim and a new owner to my 1st MB 4matic.I have been looking for one for a couple of years and finally talk my wife in making a change.(12 yrs of Lexus)Purchased from a MD Dealer out of state in "As is Condition" and our 1st fill I didn't see the label inside of the cover before fill it with regular gas.The check engine light came on right after I did this.I had this happen to my truck when the gas cap doesn't seal and same thing on our 03 ES Lexus and put new cap on.Tried to get a new seal or cap but dealer was closed.I placed a another thicker seal on old gas cap and topped off with a couple of gallons of premium but light is still on? Any ideas and thanks for any input. Tim
Last edited by tmason; Jan 16, 2011 at 11:19 AM.
Senior Member
Joined: Aug 2009
Posts: 320
Likes: 7
From: North NJ
06 E55(SOLD), 03 E500(SOLD)
If it was a loose gas cap that triggered the check engine light, I believe the CE light will stay illuminated for a certain amount of engine on, engine off cycles.
I think this has been discussed before and a search of this forum will have some good information. Also, have the codes read to determine what actually caused the CE light.
I think this has been discussed before and a search of this forum will have some good information. Also, have the codes read to determine what actually caused the CE light.
MBWorld Fanatic!
Joined: Mar 2004
Posts: 5,017
Likes: 16
From: Ft. Lauderdale Area, USA
2015 ML 350
As soon as you burn thru a half a tank of gas, fill it with the highest octane you can find to average out and elevate the octane level of what's in the tank. Do that twice, then run it out and fill with Premium.
Almost everything can can go wrong with these cars is recorded by the car's computer system & can be diagnosed by the dealer.
Member
Joined: Jun 2009
Posts: 234
Likes: 2
2006 E320 CDI
Oh please!
You can put regular into ANY modern car that is built for premium and exactly four things will happen: (1) the knock sensor will dial back your advance to prevent pre-ignition from damaging your engine, (2) you will be slightly down on power vs. using premium because of the change in the ignition timing to prevent pre-ignition, (3) you may see slightly worse fuel economy...slightly, (4) you will save a little money on the gas you buy.
Since regular tends to have a bit less detergent in it than premium, you may suffer more carbon build-up over very long term use. Throw in Techron every now and then to deal with that.
You are not going to damage the engine and you are not going to see a warning light.
The warning light is classic loose gas cap or worn out o-ring on the cap. It will turn itself off after a while once you tighten the cap or replace the o-ring.
Wait a minute, we are not talking about rot-gutt sub-regular as is supposedly found in Mexico, are we? That stuff is supposed to be so bad it might actually damage an engine.
- nopcbs
Since regular tends to have a bit less detergent in it than premium, you may suffer more carbon build-up over very long term use. Throw in Techron every now and then to deal with that.
You are not going to damage the engine and you are not going to see a warning light.
The warning light is classic loose gas cap or worn out o-ring on the cap. It will turn itself off after a while once you tighten the cap or replace the o-ring.
Wait a minute, we are not talking about rot-gutt sub-regular as is supposedly found in Mexico, are we? That stuff is supposed to be so bad it might actually damage an engine.
- nopcbs
Last edited by nopcbs; Jan 17, 2011 at 11:19 PM.
Trending Topics
MBWorld Fanatic!
Joined: Apr 2006
Posts: 2,139
Likes: 41
Tesla Model S P100D
I have a 2007 E550. Should I add a bottle of Techron when I fill up the gas tank every now and then? Is it completely safe on our cars?
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Member
Joined: Jun 2009
Posts: 234
Likes: 2
2006 E320 CDI
You can
Chevron Techron is good stuff and will keep your injectors squeeky clean if you use it a few times a year in combination with good regular gas. If you are using a good grade of premium, especially Chevron which contains Techron, you are likely already getting a good detergent package and will not benefit from adding Techron.
It will certainly do no harm in a gasoline engine. It will clean up an engine with fouled injectors with continued use.
Good stuff. Not cheap, though.
- nopcbs
It will certainly do no harm in a gasoline engine. It will clean up an engine with fouled injectors with continued use.
Good stuff. Not cheap, though.
- nopcbs
Thread Starter
Newbie
Joined: Jan 2011
Posts: 9
Likes: 0
From: Reno,Nv
06 e350 4matic
Iding Rough
I have an appointment in the morning at MB to look at this light issue and I ordered the new o-ring today for the gas cap.But the car is running a little rough and I'm thinking it might be the lower octane in regular gas?The tank is about 3/4 full and I was going to top it off on my way home with premium to see if this would help? Thanks Tim
Thread Starter
Newbie
Joined: Jan 2011
Posts: 9
Likes: 0
From: Reno,Nv
06 e350 4matic
That is a good idea. It doesn't bother me but my wife went from a Lexus to this because I always wanted an e 4matic and she is nervous if I picked the right car.
My 74 e9 CSA will run just fine on this gas
My 74 e9 CSA will run just fine on this gas
MBWorld Fanatic!
Joined: Mar 2004
Posts: 5,017
Likes: 16
From: Ft. Lauderdale Area, USA
2015 ML 350
Member
Joined: Jun 2009
Posts: 234
Likes: 2
2006 E320 CDI
Cap problem
I have read claims that an air leak in your gas cap seal can lead to rough idle. Have not experienced that symptom myself. Have gotten the check engine light that goes away. This is an emissions-mandated thing, by the way. The EPA wants to scare you into fixing the seal by making you think you are damaging the engine when it happens so you fix the leak.
If you were unlucky enough to buy gas with a lot of water in it, not impossable in winter where it's cold, that might cause a rough idle. Not very likely, but not imposable. The rough idle is NOT a symptom of too low octane as in regular gas. If you are going to see a symptom (pre-ignition) it will be under load at high speed...and your knock sensor would have to have gone deaf.
- nopcbs
If you were unlucky enough to buy gas with a lot of water in it, not impossable in winter where it's cold, that might cause a rough idle. Not very likely, but not imposable. The rough idle is NOT a symptom of too low octane as in regular gas. If you are going to see a symptom (pre-ignition) it will be under load at high speed...and your knock sensor would have to have gone deaf.
- nopcbs
I have an appointment in the morning at MB to look at this light issue and I ordered the new o-ring today for the gas cap.But the car is running a little rough and I'm thinking it might be the lower octane in regular gas?The tank is about 3/4 full and I was going to top it off on my way home with premium to see if this would help? Thanks Tim
MBWorld Fanatic!
Joined: Mar 2006
Posts: 3,254
Likes: 15
From: Louisiana
03 E500 and Corvette
You can put regular into ANY modern car that is built for premium and exactly four things will happen: (1) the knock sensor will dial back your advance to prevent pre-ignition from damaging your engine, (2) you will be slightly down on power vs. using premium because of the change in the ignition timing to prevent pre-ignition, (3) you may see slightly worse fuel economy...slightly, (4) you will save a little money on the gas you buy.
Since regular tends to have a bit less detergent in it than premium, you may suffer more carbon build-up over very long term use. Throw in Techron every now and then to deal with that.
You are not going to damage the engine and you are not going to see a warning light.
The warning light is classic loose gas cap or worn out o-ring on the cap. It will turn itself off after a while once you tighten the cap or replace the o-ring.
Wait a minute, we are not talking about rot-gutt sub-regular as is supposedly found in Mexico, are we? That stuff is supposed to be so bad it might actually damage an engine.
- nopcbs
Since regular tends to have a bit less detergent in it than premium, you may suffer more carbon build-up over very long term use. Throw in Techron every now and then to deal with that.
You are not going to damage the engine and you are not going to see a warning light.
The warning light is classic loose gas cap or worn out o-ring on the cap. It will turn itself off after a while once you tighten the cap or replace the o-ring.
Wait a minute, we are not talking about rot-gutt sub-regular as is supposedly found in Mexico, are we? That stuff is supposed to be so bad it might actually damage an engine.
- nopcbs
Loose cap will trigger light. Drive a while it will go off. Don't need dealer.
Thread Starter
Newbie
Joined: Jan 2011
Posts: 9
Likes: 0
From: Reno,Nv
06 e350 4matic
Thanks and the light went off last night so I tap off with 7 gallons of premium so things are good. Also I was looking for a tab for the back window screen and was told by the Dealer I bought the car from and also the Dealer here that you had to buy the screen for 1350.00.But I emailed my Dealer just to double check and he called and said he can order that part for 5.72 and to top off my day I used this Forum to figure out my Homelink! Thanks Guys for all the input and thanks MBW!
MBWorld Fanatic!
Joined: Sep 2008
Posts: 4,336
Likes: 8
Porsche 991S, Cayenne S, 1972 BMW 3.0CS E9 Coupe
You can run regular and it won't hurt the car. The ECU's anti-knock sensors will adjust timing. Just don't do it on a regular basis because the change in timing is not conducive to the motor's performance. Don't waste your time and jeopardize your health by "siphoning" out the gas. You'll be fine.
But if you don't want to trust me on this, then call: 1-800-FOR-MERCEDES (1-800-367-6372)
btw, gas in Mexico is actually good quality. Magna Sin (green label) is like 91 octane here in CA. They have a higher octane available called Magna Premium (red label.)
PEMEX is a state-run company and there is nothing wrong with their product. And PEMEX run gas stations are the only stations in Mexico. The only exception is buying fuel in the middle of nowhere where they don't check the tanks and might have debris (if you're exploring distant rural areas, then carry an extra fuel filter just in case.) I lived in Sonora for two years driving a BMW with no fuel related issues ever.
But if you don't want to trust me on this, then call: 1-800-FOR-MERCEDES (1-800-367-6372)
btw, gas in Mexico is actually good quality. Magna Sin (green label) is like 91 octane here in CA. They have a higher octane available called Magna Premium (red label.)
PEMEX is a state-run company and there is nothing wrong with their product. And PEMEX run gas stations are the only stations in Mexico. The only exception is buying fuel in the middle of nowhere where they don't check the tanks and might have debris (if you're exploring distant rural areas, then carry an extra fuel filter just in case.) I lived in Sonora for two years driving a BMW with no fuel related issues ever.
MBWorld Fanatic!
Joined: Sep 2005
Posts: 6,189
Likes: 242
From: Albuquerque
'10 CL550, '12 GL550
Isn't it amazing how many just "believe" rather than pay attention to data and fact?
The "knock sensor" thing is NOTHING but belief. You know, like "legend," old wives' tale," "rumor," etc.
Doesn't happen.
Find the Mercedes documentation.
The "knock sensor" thing is NOTHING but belief. You know, like "legend," old wives' tale," "rumor," etc.
Doesn't happen.
Find the Mercedes documentation.
MBWorld Fanatic!
Joined: Sep 2008
Posts: 4,336
Likes: 8
Porsche 991S, Cayenne S, 1972 BMW 3.0CS E9 Coupe
In Star DAS there is even a test for the knocking tendency of engine. It knows is whether the car is detonating or not, it pulls timing. If you run lower octane it retards timing to protect from knocking based on detonation. Why do you think Renntech and Kleemann remap the ECU for higher octane with their tunes.
#W0133-1778062 Mercedes Benz E63 AMG Knock Sensor Bosch
E350 4Matic06 Ignition Knock (Detonation) Sensor M272.972
E350 4Matic07-09 Ignition Knock (Detonation) Sensor Engine Desig: 272.972
E350 Base06 Ignition Knock (Detonation) Sensor M272.964
E350 Base07-09 Ignition Knock (Detonation) Sensor Engine Desig: 272.964
E550 4Matic07-09 Ignition Knock (Detonation) Sensor Engine Desig: 273.962
E550 Base07-09 Ignition Knock (Detonation) Sensor Engine Desig: 273.960
E63 AMG07-08 Ignition Knock (Detonation) Sensor
Former Vendor of MBWorld
Joined: Jul 2002
Posts: 807
Likes: 0
From: Colorado
KLEEMANN tunes for 91 or 93 pump fuel depending on what fuel is most widely available in your area. We typically never tune for higher octane levels unless specifically requested by the client. KLEEMANN can also do "economy" tunes intended to reducing fuel consumption and/or using lower grade fuel, however, you sacrifice quite a bit of power doing so.
MBWorld Fanatic!
Joined: Sep 2008
Posts: 4,336
Likes: 8
Porsche 991S, Cayenne S, 1972 BMW 3.0CS E9 Coupe
KLEEMANN tunes for 91 or 93 pump fuel depending on what fuel is most widely available in your area. We typically never tune for higher octane levels unless specifically requested by the client. KLEEMANN can also do "economy" tunes intended to reducing fuel consumption and/or using lower grade fuel, however, you sacrifice quite a bit of power doing so.
