Complaints About Noises or Poor
Windshield Wiper Wiping Performance
Topic number

LI82.30-P-059239

Version

14

Function group

82.30 - Windshield wipers

Date

5/19/26

Validity

All passenger car model series

Reason for change

Validity extended

Complaint
There are several types of complaint about noises or poor windshield wiper wiping performance:
A: Wiper blades squeaking, chattering, shuddering
B: The windshield is not wiped completely (streaking)
C: During the downward movement water is pulled back onto the windshield from the A-pillar (Figure 1)
D: After windshield cleaning, water keeps spraying onto the windshield for several wipe cycles (Figure 2)

Attachments
File

Description

Bild 1.JPG

Figure 1 - During the downward movement water is pulled
back onto the windshield from the A-pillar

Bild 2.JPG

Figure 2 - After windshield cleaning, water keeps spraying
onto the windshield for several wipe cycles

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Bild 3.JPG

Figure 3 - Streaking due to excessive downforce of the
wiper arm

Cause
Cause A:
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A1: The windshield and wiper blades are contaminated with residues from car washing facilities, identifiable by the
water beading. The resulting differences in the
friction values between the wiper blades and the windshield can excite the wiper blades to vibrate.
Note: It is mostly wax residue from the washer system, but also water-repellent nano-particle coating for paint and/or
silicone-based washer fluid, that could cause this problem. A partially dry windshield
also has different friction values, which can likewise result in squeaking of the wiper blades
A2: The wiper blades are worn by mechanical damage (wiper lip damaged by ice or insect debris, or deformed by
long periods of disuse).
A3: Incorrect angle of incidence of the wiper arms to the windshield. Because of this, the rubber lip of the wiper blade
may not flip over at the reversal point.
Cause B:
B1: Wax/ dirt residues on the windshield
B2: Wiper blades deformed or worn
B3: Downforce of wiper arm not OK (Figure 3)
Cause C:
Water is pulled back onto the windshield by the differential pressure created as the wiper arm moves downwards.
Cause D:
Washer water collects in the fastening of the wiper blade and is blown onto the windshield by the airstream over several wipe cycles.
Note and supporting information: Wiper blades are wear parts which, even when "not used" for long periods (kept in
park position), may become permanently deformed and damaged. Further stresses on the rubber wiper blade arise
due to various environmental influences which progressively change the effectiveness of the rubber wiper blade and
accelerate the aging process. Due to the natural aging process and wear, the wiper blades should be replaced twice a
year, preferably in Spring and Fall (see operator's manual).

Attachments
File

Description

Video 1.mp4

Video 1 - water still beads on the bottom left of the windshield, the windshield is still not properly clean.

Remedy
Remedy A:
A1: Cleaning entire windshield with A 000 986 40 71.
A2: Checking water's flow behavior after windshield has been cleaned (see Video 1). If, after cleaning, there are still
areas with water beading, then the cleaning process must be carried out again until a rejection reaction is no longer
present.
•

Note: On the vehicle in the video (Video 1), water still beads on the bottom left of the windshield. The windshield
is still not properly clean, even though it appears to be clean. The windshield is only properly clean when there
are no more areas on the windshield where water beads.
A3: Replace wiper blades with genuine wiper blades.

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Important: Only exchange wiper blades if windshield no longer has water-repellent areas
Note: Replacement of wiper blades is not covered under warranty and can be replaced at the expense of the customer.
Remedy B:
B1: Clean windshield with intensive cleaner A 000 986 40 71. Important: Do not clean the wiper blades otherwise the
graphite coating will be damaged.
B2: Replace wiper blades with genuine wiper blades
•

Note: Replacement of wiper blades is not covered under warranty and can be replaced at the expense of the
customer.
B3: Check the wiper arm for excessive resistance in the bearing. Restore mobility or replace wiper arm if necessary.
Remedy C:
Problem inherent in design for which there is no technical remedy.
Exception: X204 up to 02/2014. In these vehicles, it is possible to install the design configuration of vehicles as of
02/2014. This includes wiper arms (styled arms) with improved behavior in this respect. It is also necessary to replace
the wiper blades because the styled arms feature a Top Lock connection (previously Side Lock). When installing the
front-passenger-side wiper arm, observe the new park position (21 mm) via the marking on the windshield (Figure 4).
Notes: The costs for this conversion must be borne by the customer. It is not possible to enter the modification in the
vehicle data card. The customer must therefore be advised that, when procuring replacement parts, wiper blades for
the X204 as of 02/2014 must be ordered in future.
Remedy D:
Problem inherent in design for which there is no technical remedy.
Exception: model series 204 C-Class and model series 207. The wiper blades from model series 212 can be used on
these vehicles to improve performance.
Additional information:
•
•

Refer to model specific "Check wiper arms and adjust" instructions for the specific model in WIS
SI82.35-P-0002A - Wipe quality and noise behavior

If problems continue to occur in isolated cases even after the criteria described above are taken into account, please
open a TIPS case to the Body/Chassis/Entertainment inbox.

Attachments
File

Description

Bild 4.JPG

Figure 4 - Park position of tip of blade on X204 passenger-side wiper arm with Top Lock

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WIS-References
Document number

Title

Note

AR82.30-P-6000WT

Check wiper arms and adjust

EXAMPLE: Model 206, 214, 236, 254

SI82.35-P-0002A

Wipe quality and noise development

Disclaimer
NOTE: The information contained in this document is intended for use by trained, professional technicians with the
knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz
approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and
provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect
is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a
symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes
resulting in the same or similar symptoms or conditions described in this document, and trained professional service
technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained
in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.

Symptoms
Overall vehicle > Cleaning system > Windscreen wiper > Rubs/grabs
Overall vehicle > Cleaning system > Windscreen wiper > Too loud
Overall vehicle > Cleaning system > Windscreen wiper > Wiper arm deformed/broken

Parts
Part number

ES1 ES2 Designation

Quantity Note

EPC

A0009864071

Windshield cleaner

1

The windshield cleaner must not come into contact with plastic or painted parts otherwise they could be damaged.

X

A2048201644

Left wiper arm

1

Left wiper arm with Top Lock. (only
for retrofitting X204 up to 02/2014,
standard from 02/2014 onward)

X

A2048201744

Right wiper arm

1

Right wiper arm with Top Lock. (only for retrofitting X204 up to 02/2014,
standard from 02/2014 onward)

X

A2048201400

Wiper blades parts kit

1

Parts kit for wiper blades with Top
Lock. (only for retrofitting X204 up to
02/2014, standard from 02/2014 onward)

X

A2128201700

Wiper blades parts kit, LHD

1

For D complaints in model series 204
C-Class and model series 207

X

A2128201800

Wiper blades parts kit, RHD

1

For D complaints in model series 204
C-Class and model series 207

X

Operation numbers/damage codes
Op. no.

Operation text

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Time

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Damage
code

Note

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