Tech help needed. Heater issues
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
Tech help needed. Heater issues
My wife absolutely loves her '07 E350 4Matic, Sport with P1, and it's been to the shop twice already to fix the following 2 items. The shop-techs, as well as everyone else at the dealer cannot make the necessary repairs. If I have to, I'll go the "Lemon Law" route, but the car's amazing, and we prefer to have it fixed. Any experts out there for these 2 issues?
1. Cover for sunroof continues to make a tapping/clicking sound when going over bumps. Been in twice for foam inside the headliner but doesn't solve the problem. The noise is coming from the rear area of the shade.
2. Heater: For no apparent reason, I sometimes get cold air blowing on my feet on the driver's side, even when there's a call for heat, and heat is blowing from the other vents. When it blows cold, the only way to get heat down there is to turn the temp dail up to max (but it gets too hot). This is an intermittant problem and the dealer can't duplicate it.
Thanks in advance, and any/all help is appreciated.
1. Cover for sunroof continues to make a tapping/clicking sound when going over bumps. Been in twice for foam inside the headliner but doesn't solve the problem. The noise is coming from the rear area of the shade.
2. Heater: For no apparent reason, I sometimes get cold air blowing on my feet on the driver's side, even when there's a call for heat, and heat is blowing from the other vents. When it blows cold, the only way to get heat down there is to turn the temp dail up to max (but it gets too hot). This is an intermittant problem and the dealer can't duplicate it.
Thanks in advance, and any/all help is appreciated.
Last edited by SPNJHockey; Feb 14, 2008 at 10:31 PM.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 3,254
Likes: 15
From: Louisiana
03 E500 and Corvette
2. Heater: For no apparent reason, I sometimes get cold air blowing on my feet on the driver's side, even when there's a call for heat, and heat is blowing from the other vents. When it blows cold, the only way to get heat down there is to turn the temp dail up to max (but it gets too hot). This is an intermittant problem and the dealer can't duplicate it.
Thanks in advance, and any/all help is appreciated.
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
Super Member
Joined: Jan 2008
Posts: 508
Likes: 1
From: california high desert
2003 S500, 03 C240, 03 E320, 03 tahoe
sunroof covers rattle
our C-240,E-320 and S-500 all rattle a bit from the sunroof covers but only on really rough roads,never while driving in normal conditions.slide the cover back manually when it rattles to make sure it's the cover and not a component of the sunroof mechanical linkage.if you leave the cover in the aft position it should never rattle.also check that your navi isnt displaying "this is a Mercedes Benz avoid rattle prone roads". bones
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
Trending Topics
MB World Stories
The Best of Mercedes & AMG
8 Oddball Mercedes Ideas That Actually Made it to Production
Verdad Gallardo
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look
Verdad Gallardo
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
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
Junior Member
Joined: Apr 2007
Posts: 51
Likes: 0
From: braselton ga
96 c36
for the sunroof liner= the clips that hold it in the track may be coming apart. have them replace the liner if they determine that its not a mechanical failure in the sunroof tray itself. for the a/c, it could be a number of things. there should be codes in the aac control unit. if not, they should be able to check the actual values, and figure it out from there. like i said, without being able to see the car i cant give you a definate answer of what the problem is since there are so many factors involved. where are you located?
Last edited by CFLPEEK; Feb 29, 2008 at 10:56 PM.
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
OK, car went into the shop the day before yesterday. Got a call today saying that the tech wasn't able to replicate my complaint regarding the heating issue.
The good news is...the sun roof cover/shade was fixed (for the third time).
It really sucks that I bought this vehicle as a present for my wife. She's not getting any enjoyment out of it.
The good news is...the sun roof cover/shade was fixed (for the third time).
It really sucks that I bought this vehicle as a present for my wife. She's not getting any enjoyment out of it.
MBWorld Fanatic!
Joined: Mar 2006
Posts: 3,254
Likes: 15
From: Louisiana
03 E500 and Corvette
Your cold air problem might be the cycling of the ac on and off. It might be operating normal. It blows hot air like your home heating system,, then when it turns off it continues to cycle the air but it may not be heated. This could be normal operation for a temperature control system. That's why it is my complaint,, my feet always get cold in winter because of this cycling. This might be why they could not duplicate a problem if it is operating AS DESIGNED.
You might take it out of auto mode put it in manual and see if there is any difference.
You might take it out of auto mode put it in manual and see if there is any difference.
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
Member
Joined: Jun 2006
Posts: 87
Likes: 0
From: USA
ML500 AMG pkg
I have an 07 E350 sport and my heat works perfectly after a tech at ASC synchronized the stepper motors and adjusted the temp setting. There is a setting that adjust the sensitivity of cabin temp, my setting was off by 8 degrees. Also was told not to point the center vent upwards towards the in car temp sensor which is located in the dome light assembly, this causes the control unit to get the wrong cabin temp and adjust accordingly.
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
I have an 07 E350 sport and my heat works perfectly after a tech at ASC synchronized the stepper motors and adjusted the temp setting. There is a setting that adjust the sensitivity of cabin temp, my setting was off by 8 degrees. Also was told not to point the center vent upwards towards the in car temp sensor which is located in the dome light assembly, this causes the control unit to get the wrong cabin temp and adjust accordingly.
Bro, I'm thinking that you're an eff-ing genius. However...regarding "off by 8 degrees," was yours set 8 degrees higher or lower than it should have been? Brilliant, Dude, just brilliant.
I'm keeping my fingers crossed.
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 440
Likes: 1
From: Exit 16E
07 E350 4Matic / Sport with P1
I have an 07 E350 sport and my heat works perfectly after a tech at ASC synchronized the stepper motors and adjusted the temp setting. There is a setting that adjust the sensitivity of cabin temp, my setting was off by 8 degrees. Also was told not to point the center vent upwards towards the in car temp sensor which is located in the dome light assembly, this causes the control unit to get the wrong cabin temp and adjust accordingly.
Did you have the same symptoms that I do?
