The contact owns a 2009 Mercedes-Benz GL450. The contact stated that the ABS and check engine warning lights were illuminated, and the struts had failed. The vehicle was taken to the dealer to be repaired under the federal safety agency Campaign Number: 22V315000 (Service Brakes, Hydraulic); however, the dealer informed the contact that the vehicle needed to be diagnosed prior to the recall repair, due to the failure. The contact declined to pay the diagnostic fee, and the vehicle was not diagnosed or repaired. The contact stated that the dealer failed to honor the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 156,000.
The worst 2009 Mercedes Benz GL450 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Airbags8
- Brakes3
- Suspension3
- Engine2
- Driver assistance1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Airbags8
- Brakes3
- Suspension3
- Engine2
- Driver assistance1
- Electrical1
- Lights1
Recalls 3
Service brakes, hydraulic: power assist: vacuum
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML, GL, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
- Risk
- Reduced brake performance or brake failure can increase the risk of a crash.
- Remedy
- Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed on May 24, 2024. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MMUSA's number for this recall is 2024050001/2. This recall is an expansion of previous recall number 22V‑315.
Recall number 24V298000 · Recall details
Service brakes, hydraulic: power assist: vacuum
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
- Risk
- Reduced brake performance or brake failure can increase the risk of a crash.
- Remedy
- Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed June 30, 2022. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's numbers for this recall are 2022050014, 2022050015 2022090006, & 2022090007.
Recall number 22V315000 · Recall details
Air bags: frontal: driver side: inflator module
- What is wrong
- Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2009-2010 ML320 BlueTec 4Matic, GL320 BlueTec 4Matic and R320 CDI 4Matic, 2011 E350 Cabriolet and E550 Cabriolet, 2009-2011 ML350, ML350 4Matic, ML550 4Matic, ML63 AMG, and C63 AMG, 2010-2011 ML450 4Matic Hybrid, E350 Coupe, E350 4Matic, E550 Coupe, E550 4Matic, and E63 AMG, 2011-2012 GL350 BlueTec 4Matic and R350 BlueTec 4Matic, 2009-2012 GL450 4Matic, GL550 4Matic and R350 4Matic, 2007-2008 SLK280, SLK350, and SLK55 AMG, 2011-2014 SLS AMG Coupe, 2012 SLS AMG Cabriolet, 2013-2014 SLS AMG GT and SLS AMG GT Cabriolet, 2005 C230 Kompressor and C320, 2006-2007 C230, 2006-2011 C350, 2008-2011 C300 and C300 4Matic, 2010-2012 GLK350 and GLK350 4Matic and 2007-2008 Chrysler Crossfire vehicles. Upon deployment of the driver's frontal air bag, excessive internal pressure may cause the inflator to rupture.
- Risk
- In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the driver or other occupants resulting in serious injury or death.
- Remedy
- MBUSA will their notify owners, and Fiat Chrysler will notify the affected Chrysler owners. Dealers for the respective brands will replace the driver's frontal air bag module, free of charge. This recall began November 2016. Mercedes-Benz owners may contact MBUSA customer service at 1‑800‑367‑6372 and Chrysler owners may contact Fiat Chrysler customer service at 1‑800‑853‑1403.
Recall number 16V081000 · Recall details
See all 3 recalls for the 2009 Mercedes Benz GL450
Defect investigations
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
EA21002
Technical service bulletins for the 2009 Mercedes Benz GL450 61
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
- Clanking noise from the area of the speakers in the doors
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Headlamp, front fog lamp leaky or fogged
- Headlamp, front fog lamp leaky or fogged
- Headlamps leaking or fogged
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Headlamp, front fog lamp leaky or fogged
- During a phone call, the called party has difficulty understanding/cannot understand the driver, or...
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
2009 Mercedes Benz GL450 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 4.6L 8‑cyl | 4WD | 13 | 18 | 15 |
What 2009 Mercedes Benz GL450 owners say
Most recent owner complaints, unedited.
The contact owns a 2009 Mercedes-Benz GL450. The contact stated while driving at an undisclosed speed, the brake pedal was depressed, and the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was towed to the dealer who informed the contact that the vehicle was not safe to drive. The vehicle was towed to the dealer where the recall repair of the federal safety agency Campaign Number: 22V315000 (Service Brakes, Hydraulic) was completed; however, after the recall repair was completed, the vehicle failed to start. The dealer replaced the battery and completed other unknown repairs on the vehicle. The contact stated that he picked up and drove the vehicle to his residence; however, the vehicle failed to start the next day. The vehicle was towed to the dealer. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that they would reimburse the rental car cost. The failure mileage was approximately 143,300.
I was driving 70 down an interstate a Saturday around 4:30 pm and heard a noise as if my sunroof opened a bit, then I heard a loud pop and a rush of air and looked in my rearview mirror and didn't see anything, I looked up seen the sunroof was gone. All I could think about is that could have really caused a serious accident. Glad no one was around me at the time. I doubled back twice and could not find the sunroof glass. I got home and put a couple pieces of cardboard and plastic down and duct taped it before the snow storm hits. A day after and my heart is still racing knowing that could have cause a wreck.
Takata inflators : the SRS light is continuously staying on in the vehicle. As soon as the vehicle is started the light comes on and does not go off until the vehicle goes back off.
I am having issues with my suspension. I've had to replace it twice in 1 year. A recall should be issued on this.
I purchased my mb gl450 in 2010 and at that time it was covered as a pre-owned mb vehicle. Under the warranty, I had the air ride suspension fixed twice. Once on front left and right. After the warrant expired, I have had to do both sides of my suspension again. Now the front left has failed and needs to be repaired. I have read my blogs and posts about this mb suspension defect and want hope the federal safety agency can push mb to issue a recall to fix this failed product.
Takata recall: still no remedy available per mercedes benz; first notice received 2/2017.
This complain is about the recall report as below feb 11,2016 manufacturer recall number2016020003 the federal safety agency recall number16v081 description: I have never been contacted by the manufacturer about this recall. Apparently, the manufacturer has failed or is unable to remedy this safety recall for your vehicle in a timely manner.
Takata recall my vehicle is part of the recall and there is still no fix for my problem. This is extremely dangerous, we are driving with a ticking time bomb.
Takata recall the recall was instituted february 2016, yet to date there has been no remedy offered by the manufacturer and no indication as to when they will be replacing the airbags.
Compare the 2009 Mercedes Benz GL450
Other model years
Questions about the 2009 Mercedes Benz GL450
Is the 2009 Mercedes Benz GL450 reliable?
Owners have filed 15 complaints about the 2009 Mercedes Benz GL450, fewer than a typical GL450 model year.
What is the 2009 Mercedes Benz GL450 year score?
The 2009 Mercedes Benz GL450 scores 90 out of 100 (good). The score compares it with the other model years of the Mercedes Benz GL450: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2009 Mercedes Benz GL450?
Airbags, with 8 complaints. Next is brakes (3).
How many recalls does the 2009 Mercedes Benz GL450 have?
3 recalls, covering service brakes, hydraulic and air bags.
Was there a recall on the 2009 Mercedes Benz GL450 airbags?
Yes, 1 recall: 16V081000. Check your VIN to see if your car still needs the free repair.
What gas mileage does the 2009 Mercedes Benz GL450 get?
Official estimates for the 2009 Mercedes Benz GL450 range from 15 mpg combined. The most efficient version (4.6L 8-cyl, 4WD) gets 13 city and 18 highway.
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