The worst 2015 Mercedes-Benz CLS63 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 3
Engine and engine cooling: engine
- 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 lighting
- 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: hood
- 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 3 recalls for the 2015 Mercedes-Benz CLS63
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 2015 Mercedes-Benz CLS63 111
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the...
- Engine
- Visibility/wiper
- 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)
- The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the...
- There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...
- Noises at the front axle when cornering or maneuvering (video files attached) Note: Save video files...
- Headlamp, front fog lamp leaky or fogged
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Questions about the 2015 Mercedes-Benz CLS63
Is the 2015 Mercedes-Benz CLS63 reliable?
Owners have filed 0 complaints about the 2015 Mercedes-Benz CLS63.
What is the most common problem with the 2015 Mercedes-Benz CLS63?
There are not enough complaints to tell.
How many recalls does the 2015 Mercedes-Benz CLS63 have?
3 recalls, covering engine and engine cooling, exterior lighting and structure.
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