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2015 Mercedes-Benz CLS400 problems

The most common problem on the 2015 Mercedes-Benz CLS400 is electrical system. Its complaint count is close to a typical CLS400 model year.

Typical yearClose to a typical year
Owner complaints
8
Recalls
4
Service bulletins
1062 warranty
Worst area
Electrical

The worst 2015 Mercedes-Benz CLS400 problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Electrical
    3
  • Driver assistance
    2
  • Brakes
    1
  • Engine
    1
  • Lights
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Electrical
    3
  • Driver assistance
    2
  • Brakes
    1
  • Engine
    1
  • Lights
    1
  • Seats
    1
  • Steering
    1
  • Transmission
    1
  • Wheels
    1

Recalls 4

CommunicationReported November 1, 2019 · 24,226 vehicles affected
What is wrong
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit:
Risk
An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Remedy
MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2019120008.

Recall number 19V787000 · Recall details

Engine and engine cooling: engineReported August 11, 2015 · 209 vehicles affected
What is wrong
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2016 Mercedes Benz E350, E400, E400 4Matic, E63 4M S AMG, E350 4Matic, E63-4M S AMG, 2015 CLS400, CLS400 4Matic, CLS550, CLS63-4M "P" AMG, and CLS550 4Matic vehicles manufactured April 16, 2015, to April 22, 2015. The integral steel cable that secures the rubber seal to the bulkhead might have been damaged due to the supplier rework of the rubber seal. In the event the rubber seal is not properly secured around the engine compartment, it is possible for the rubber seal to temporarily stick to the hood when it is opened and then may fall into the engine bay when the hood is closed.
Risk
If the rubber seal falls into the engine compartment, it may contact parts of the engine or exhaust system, increasing the risk of a fire.
Remedy
MBUSA will notify owners, and dealers will replace the rubber seal, in the engine compartment, free of charge. The recall began on September 2, 2015. MBUSA's number is 2015080001. Owners may contact MBUSA customer service at 1‑201‑573‑5339.

Recall number 15V505000 · Recall details

Exterior lightingReported March 10, 2015 · 30,141 vehicles affected
What is wrong
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 CLS 400 and CLS 400 4matic, 2012-2015 CLS 550 and CLS 550 4matic, 2012-2013 CLS 63, 2014 CLS 63, and 2014-2015 CLS 63P. The affected vehicles have LED tail lights that may not light on the sides, reducing the rear side visibility of the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk
Reduced rear side marker illumination may prevent other drivers from seeing the vehicle, increasing the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will update the lighting controller software, free of charge. The recall began April 6, 2015. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2015030005.

Recall number 15V137000 · Recall details

Structure: body: hoodReported February 13, 2015 · 147,224 vehicles affected
What is wrong
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2013-2015 E350 Sedan, E350 4Matic Sedan, E350 4Matic Station Wagon, E400 Hybrid Sedan, CLS 550 CGI, and CLS550 4Matic, 2013-2014 E550 4Matic Sedan, 2013 E63 Sedan, E63 Station Wagon and CLS63, 2014-2015 CLS63 4Matic, E63 4Matic Sedan, E63 4Matic Sedan "S", and E63 4Matic Station Wagon, 2015 CLS400, 2015 E400 Sedan, E400 4Matic Sedan and CLS400 4Matic and 2014 CLS63 "S". The affected vehicles have a rubber seal at the back of the engine bay that may temporarily stick to the hood when it is opened and then may fall into the engine bay when the hood is closed.
Risk
If the rubber seal falls into the engine compartment, it may contact parts of the exhaust system, increasing the risk of a fire.
Remedy
MBUSA will notify owners, and dealers will attach four additional retaining clips to the rubber seal, free of charge. The recall began March 6, 2015. Owners may contact MBUSA customer service at 1‑201‑573‑5339. MBUSA's number for this recall is 2015020001.

Recall number 15V088000 · Recall details

See all 4 recalls for the 2015 Mercedes-Benz CLS400

Defect investigations

Desiccated Air Bag Inflator RuptureOpened September 17, 2021, still open

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 2015 Mercedes-Benz CLS400 106

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 106 bulletins for the 2015 Mercedes-Benz CLS400

What 2015 Mercedes-Benz CLS400 owners say

Most recent owner complaints, unedited.

Filed Jan 28, 2023 · Engine · TX · fire

2015 mercedes benz CLS 400 - Engine caught fire while in a parking lot approximately 10 minutes after i parked it and went inside department store. The vehicle had no open recalls

Filed Jul 22, 2022 · Transmission · UT

while going on freeway at 70 mph car came up with code service required do not shift see dealer and lost power had to pull off lane onto shoulder luckily was able to, could not get car to shift or go anywhere could not contact their roadside assistance, this is the third time it has done it too me, this last time could have resulted in a crash and possible death

Filed Mar 23, 2020 · Brakes · 40,000 miles · MA

A few times a month, the emergency brake light comes on and the car's engine and volume start to decrease. The temporary fix, is to release the emergency brake.

Filed Mar 20, 2020 · Seats · 43,500 miles · MA

The driver's seat with not move forward or backwards

Filed Dec 1, 2019 · Wheels · 36,500 miles · SC

Cls 400 4 magic 2015. Rear tires wearing from inside of tire at 36,000 miles. Looking at tires from outside and top looks great as if tires are in good shape. Luckily while on high way tire began to deflate before coming apart at 60 MPH. 😥

Filed Oct 19, 2015 · Driver assistance, Electrical · 10,000 miles · CA

Total electrical failure which is causing command system to power on/off while vehicle is being driven,not allowing me to use navigation,windows(rolling up&down or not working at all),side view mirrors(flipping out & in,while vehicle is being driven)air conditioning,radio turning itself off/on.electronic breaking system activating itself while vehicle is being driven,speedometer not working.keyless functions not working had to remove hard key manually to open car door & remove push button starter manually to insert key.the car is unsafe to drive especially with the braking system activating itself as well as the multi malfunctions.this is now the 4th time the vehicle has been taken to the dealership for this problem.I have 10,000 miles on the car, purchased it dec 24,2014.I called mb USA customer service & reported the complaints/malfunctions to them & made them aware that the car was unsafe to drive & the customer service agent took my information & said someone would call me tomorrow afternoon about the situation.I also gave them the name of the dealership & my service advisors name whom I've had documenting the problems with the care as well as myself.the agent said they'd call him tomorrow & then me.

Filed Sep 28, 2015 · Driver assistance, Electrical · 9,000 miles · CA

This is the 2nd time my 2015 cls400 mercedes has been returned to the dealership for this reoccurring problem of the electronic command system totally shutting down while the vehicle is being driven on the street and frwy.navigation blinks on & off,side view mirrors fold in & out while vehicle is being driven,radio turns on & off,electronic braking system activated itself while I was driving on the frwy & around town,keyless entry would not work so I had to use the manual key to get into vehicle & remove push start button to insert the key to start vehicle,windows would not work nor air conditioning & it was a hot day.speedometer would not work & gas meter showed empty even though vehicle had a full tank. Vehicle was simply unsafe to drive.I purchased the vehicle on dec 24 2014 and the problem started in aug 2015 in which the dealership had my vehicle for 5-6 days & said they couldn't figure out what was wrong but confirmed my story because the computer system they plugged into confirmed the malfunctions.now sept2015 the car is back at the dealership for the 2nd time for the same reoccurring problems.all I know is the vehicle is unsafe to drive.the vehicle has 10,000 miles on it but was purchased brand new & I am the original owner.

Filed May 27, 2015 · Electrical · 30 miles · FL

Despite the federal safety agency recall # 15v137 was issued on march 12th,2015 I was sold a cls400 on march 14th. Neither at time of sale nor thereafter I was notified about this recall. It seems that dealership was in violation of mercedes benz USA's stop-sale order issued to dealers on march 13th.

Compare the 2015 Mercedes-Benz CLS400

Other model years

2015

Questions about the 2015 Mercedes-Benz CLS400

Is the 2015 Mercedes-Benz CLS400 reliable?

Owners have filed 8 complaints about the 2015 Mercedes-Benz CLS400, close to a typical CLS400 model year.

What is the most common problem with the 2015 Mercedes-Benz CLS400?

Electrical system, with 3 complaints. Next is driver assistance (2).

How many recalls does the 2015 Mercedes-Benz CLS400 have?

4 recalls, covering communication, engine and engine cooling and exterior lighting.

Was there a recall on the 2015 Mercedes-Benz CLS400 electrical?

Yes, 1 recall: 19V787000. Check your VIN to see if your car still needs the free repair.

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