diff --git a/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php b/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php
index a2cd1fe39a10c..a5bcd1251b8a2 100644
--- a/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php
+++ b/src/Symfony/Component/Serializer/Encoder/CsvEncoder.php
@@ -40,6 +40,7 @@ class CsvEncoder implements EncoderInterface, DecoderInterface
         self::HEADERS_KEY => [],
         self::KEY_SEPARATOR_KEY => '.',
         self::NO_HEADERS_KEY => false,
+        self::AS_COLLECTION_KEY => false,
     ];
 
     /**
@@ -101,7 +102,7 @@ public function encode($data, $format, array $context = [])
 
         $headers = array_merge(array_values($headers), array_diff($this->extractHeaders($data), $headers));
 
-        if (!($context[self::NO_HEADERS_KEY] ?? false)) {
+        if (!($context[self::NO_HEADERS_KEY] ?? $this->defaultContext[self::NO_HEADERS_KEY])) {
             fputcsv($handle, $headers, $delimiter, $enclosure, $escapeChar);
         }
 
@@ -147,7 +148,7 @@ public function decode($data, $format, array $context = [])
             if (null === $headers) {
                 $nbHeaders = $nbCols;
 
-                if ($context[self::NO_HEADERS_KEY] ?? false) {
+                if ($context[self::NO_HEADERS_KEY] ?? $this->defaultContext[self::NO_HEADERS_KEY]) {
                     for ($i = 0; $i < $nbCols; ++$i) {
                         $headers[] = [$i];
                     }
@@ -187,7 +188,7 @@ public function decode($data, $format, array $context = [])
         }
         fclose($handle);
 
-        if ($context[self::AS_COLLECTION_KEY] ?? false) {
+        if ($context[self::AS_COLLECTION_KEY] ?? $this->defaultContext[self::AS_COLLECTION_KEY]) {
             return $result;
         }
 
diff --git a/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php b/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php
index 11ee3302d4981..cc7522f9653f8 100644
--- a/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Encoder/CsvEncoderTest.php
@@ -202,6 +202,24 @@ public function testEncodeCustomSettingsPassedInContext()
         ]));
     }
 
+    public function testEncodeCustomSettingsPassedInConstructor()
+    {
+        $encoder = new CsvEncoder([
+            CsvEncoder::DELIMITER_KEY => ';',
+            CsvEncoder::ENCLOSURE_KEY => "'",
+            CsvEncoder::ESCAPE_CHAR_KEY => '|',
+            CsvEncoder::KEY_SEPARATOR_KEY => '-',
+        ]);
+        $value = ['a' => 'he\'llo', 'c' => ['d' => 'foo']];
+
+        $this->assertSame(<<<'CSV'
+a;c-d
+'he''llo';foo
+
+CSV
+        , $encoder->encode($value, 'csv'));
+    }
+
     public function testEncodeEmptyArray()
     {
         $this->assertEquals("\n\n", $this->encoder->encode([], 'csv'));
@@ -373,6 +391,15 @@ public function testEncodeWithoutHeader()
             , $this->encoder->encode([['a', 'b'], ['c', 'd']], 'csv', [
                 CsvEncoder::NO_HEADERS_KEY => true,
             ]));
+        $encoder = new CsvEncoder([CsvEncoder::NO_HEADERS_KEY => true]);
+        $this->assertSame(<<<'CSV'
+a,b
+c,d
+
+CSV
+            , $encoder->encode([['a', 'b'], ['c', 'd']], 'csv', [
+                CsvEncoder::NO_HEADERS_KEY => true,
+            ]));
     }
 
     public function testSupportsDecoding()
@@ -524,6 +551,23 @@ public function testDecodeCustomSettingsPassedInContext()
         ]));
     }
 
+    public function testDecodeCustomSettingsPassedInConstructor()
+    {
+        $encoder = new CsvEncoder([
+            CsvEncoder::DELIMITER_KEY => ';',
+            CsvEncoder::ENCLOSURE_KEY => "'",
+            CsvEncoder::ESCAPE_CHAR_KEY => '|',
+            CsvEncoder::KEY_SEPARATOR_KEY => '-',
+            CsvEncoder::AS_COLLECTION_KEY => true, // Can be removed in 5.0
+        ]);
+        $expected = [['a' => 'hell\'o', 'bar' => ['baz' => 'b']]];
+        $this->assertEquals($expected, $encoder->decode(<<<'CSV'
+a;bar-baz
+'hell''o';b;c
+CSV
+        , 'csv'));
+    }
+
     public function testDecodeMalformedCollection()
     {
         $expected = [
@@ -553,6 +597,15 @@ public function testDecodeWithoutHeader()
 a,b
 c,d
 
+CSV
+        , 'csv', [
+            CsvEncoder::NO_HEADERS_KEY => true,
+        ]));
+        $encoder = new CsvEncoder([CsvEncoder::NO_HEADERS_KEY => true]);
+        $this->assertEquals([['a', 'b'], ['c', 'd']], $encoder->decode(<<<'CSV'
+a,b
+c,d
+
 CSV
         , 'csv', [
             CsvEncoder::NO_HEADERS_KEY => true,

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